CVE-2025-20333
Full vulnerability record from the local CVENow database.
Description
A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker with valid VPN user credentials could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of the affected device.
Severity
CRITICAL
CVSS score
9.9
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2025-09-25 16:15:32.073000
Last modified
2026-10-18 21:10:00.120000
View original CVE JSON
{
"id": "CVE-2025-20333",
"sourceIdentifier": "[email protected]",
"published": "2025-09-25T16:15:32.073",
"lastModified": "2026-10-18T21:10:00.120",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code on an affected device.\r\n\r This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker with valid VPN user credentials could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of the affected device."
},
{
"lang": "es",
"value": "Una vulnerabilidad en el servidor web VPN de Cisco Secure Firewall Adaptive Security Appliance (ASA) Software y Cisco Secure Firewall Threat Defense (FTD) Software podría permitir a un atacante remoto autenticado ejecutar código arbitrario en un dispositivo afectado. Esta vulnerabilidad se debe a una validación incorrecta de la entrada proporcionada por el usuario en las solicitudes HTTP(S). Un atacante con credenciales de usuario VPN válidas podría explotar esta vulnerabilidad enviando solicitudes HTTP manipuladas a un dispositivo afectado. Un exploit exitoso podría permitir al atacante ejecutar código arbitrario como root, lo que posiblemente resultaría en el compromiso completo del dispositivo afectado."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Secure Firewall Adaptive Security Appliance (ASA) Software",
"versions": [
{
"version": "9.8.1",
"status": "affected"
},
{
"version": "9.8.1.5",
"status": "affected"
},
{
"version": "9.8.1.7",
"status": "affected"
},
{
"version": "9.8.2",
"status": "affected"
},
{
"version": "9.8.2.8",
"status": "affected"
},
{
"version": "9.8.2.14",
"status": "affected"
},
{
"version": "9.8.2.15",
"status": "affected"
},
{
"version": "9.8.2.17",
"status": "affected"
},
{
"version": "9.8.2.20",
"status": "affected"
},
{
"version": "9.8.2.24",
"status": "affected"
},
{
"version": "9.8.2.26",
"status": "affected"
},
{
"version": "9.8.2.28",
"status": "affected"
},
{
"version": "9.8.2.33",
"status": "affected"
},
{
"version": "9.8.2.35",
"status": "affected"
},
{
"version": "9.8.2.38",
"status": "affected"
},
{
"version": "9.8.3.8",
"status": "affected"
},
{
"version": "9.8.3.11",
"status": "affected"
},
{
"version": "9.8.3.14",
"status": "affected"
},
{
"version": "9.8.3.16",
"status": "affected"
},
{
"version": "9.8.3.18",
"status": "affected"
},
{
"version": "9.8.3.21",
"status": "affected"
},
{
"version": "9.8.3",
"status": "affected"
},
{
"version": "9.8.3.26",
"status": "affected"
},
{
"version": "9.8.3.29",
"status": "affected"
},
{
"version": "9.8.4",
"status": "affected"
},
{
"version": "9.8.4.3",
"status": "affected"
},
{
"version": "9.8.4.7",
"status": "affected"
},
{
"version": "9.8.4.8",
"status": "affected"
},
{
"version": "9.8.4.10",
"status": "affected"
},
{
"version": "9.8.4.12",
"status": "affected"
},
{
"version": "9.8.4.15",
"status": "affected"
},
{
"version": "9.8.4.17",
"status": "affected"
},
{
"version": "9.8.2.45",
"status": "affected"
},
{
"version": "9.8.4.25",
"status": "affected"
},
{
"version": "9.8.4.20",
"status": "affected"
},
{
"version": "9.8.4.22",
"status": "affected"
},
{
"version": "9.8.4.26",
"status": "affected"
},
{
"version": "9.8.4.29",
"status": "affected"
},
{
"version": "9.8.4.32",
"status": "affected"
},
{
"version": "9.8.4.33",
"status": "affected"
},
{
"version": "9.8.4.34",
"status": "affected"
},
{
"version": "9.8.4.35",
"status": "affected"
},
{
"version": "9.8.4.39",
"status": "affected"
},
{
"version": "9.8.4.40",
"status": "affected"
},
{
"version": "9.8.4.41",
"status": "affected"
},
{
"version": "9.8.4.43",
"status": "affected"
},
{
"version": "9.8.4.44",
"status": "affected"
},
{
"version": "9.8.4.45",
"status": "affected"
},
{
"version": "9.8.4.46",
"status": "affected"
},
{
"version": "9.8.4.48",
"status": "affected"
},
{
"version": "9.12.1",
"status": "affected"
},
{
"version": "9.12.1.2",
"status": "affected"
},
{
"version": "9.12.1.3",
"status": "affected"
},
{
"version": "9.12.2",
"status": "affected"
},
{
"version": "9.12.2.4",
"status": "affected"
},
{
"version": "9.12.2.5",
"status": "affected"
},
{
"version": "9.12.2.9",
"status": "affected"
},
{
"version": "9.12.3",
"status": "affected"
},
{
"version": "9.12.3.2",
"status": "affected"
},
{
"version": "9.12.3.7",
"status": "affected"
},
{
"version": "9.12.4",
"status": "affected"
},
{
"version": "9.12.3.12",
"status": "affected"
},
{
"version": "9.12.3.9",
"status": "affected"
},
{
"version": "9.12.2.1",
"status": "affected"
},
{
"version": "9.12.4.2",
"status": "affected"
},
{
"version": "9.12.4.4",
"status": "affected"
},
{
"version": "9.12.4.7",
"status": "affected"
},
{
"version": "9.12.4.10",
"status": "affected"
},
{
"version": "9.12.4.13",
"status": "affected"
},
{
"version": "9.12.4.8",
"status": "affected"
},
{
"version": "9.12.4.18",
"status": "affected"
},
{
"version": "9.12.4.24",
"status": "affected"
},
{
"version": "9.12.4.26",
"status": "affected"
},
{
"version": "9.12.4.29",
"status": "affected"
},
{
"version": "9.12.4.30",
"status": "affected"
},
{
"version": "9.12.4.35",
"status": "affected"
},
{
"version": "9.12.4.37",
"status": "affected"
},
{
"version": "9.12.4.38",
"status": "affected"
},
{
"version": "9.12.4.39",
"status": "affected"
},
{
"version": "9.12.4.40",
"status": "affected"
},
{
"version": "9.12.4.41",
"status": "affected"
},
{
"version": "9.12.4.47",
"status": "affected"
},
{
"version": "9.12.4.48",
"status": "affected"
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{
"version": "9.12.4.50",
"status": "affected"
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{
"version": "9.12.4.52",
"status": "affected"
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{
"version": "9.12.4.54",
"status": "affected"
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{
"version": "9.12.4.55",
"status": "affected"
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{
"version": "9.12.4.56",
"status": "affected"
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{
"version": "9.12.4.58",
"status": "affected"
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{
"version": "9.12.4.62",
"status": "affected"
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{
"version": "9.12.4.65",
"status": "affected"
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{
"version": "9.12.4.67",
"status": "affected"
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{
"version": "9.14.1",
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{
"version": "9.14.1.10",
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{
"version": "9.14.1.6",
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{
"version": "9.14.1.15",
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{
"version": "9.14.1.19",
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{
"version": "9.14.1.30",
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{
"version": "9.14.2",
"status": "affected"
},
{
"version": "9.14.2.4",
"status": "affected"
},
{
"version": "9.14.2.8",
"status": "affected"
},
{
"version": "9.14.2.13",
"status": "affected"
},
{
"version": "9.14.2.15",
"status": "affected"
},
{
"version": "9.14.3",
"status": "affected"
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{
"version": "9.14.3.1",
"status": "affected"
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{
"version": "9.14.3.9",
"status": "affected"
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{
"version": "9.14.3.11",
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{
"version": "9.14.3.13",
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{
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{
"version": "9.14.3.15",
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{
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{
"version": "9.14.4.6",
"status": "affected"
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{
"version": "9.14.4.7",
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{
"version": "9.14.4.12",
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{
"version": "9.14.4.13",
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{
"version": "9.14.4.14",
"status": "affected"
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{
"version": "9.14.4.15",
"status": "affected"
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{
"version": "9.14.4.17",
"status": "affected"
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{
"version": "9.14.4.22",
"status": "affected"
},
{
"version": "9.14.4.23",
"status": "affected"
},
{
"version": "9.14.4.24",
"status": "affected"
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{
"version": "9.16.1",
"status": "affected"
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{
"version": "9.16.1.28",
"status": "affected"
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{
"version": "9.16.2",
"status": "affected"
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{
"version": "9.16.2.3",
"status": "affected"
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{
"version": "9.16.2.7",
"status": "affected"
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{
"version": "9.16.2.11",
"status": "affected"
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{
"version": "9.16.2.13",
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{
"version": "9.16.2.14",
"status": "affected"
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{
"version": "9.16.3",
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{
"version": "9.16.3.3",
"status": "affected"
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{
"version": "9.16.3.14",
"status": "affected"
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{
"version": "9.16.3.15",
"status": "affected"
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{
"version": "9.16.3.19",
"status": "affected"
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{
"version": "9.16.3.23",
"status": "affected"
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{
"version": "9.16.4",
"status": "affected"
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{
"version": "9.16.4.9",
"status": "affected"
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{
"version": "9.16.4.14",
"status": "affected"
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{
"version": "9.16.4.18",
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{
"version": "9.16.4.19",
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{
"version": "9.16.4.27",
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{
"version": "9.16.4.38",
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{
"version": "9.16.4.39",
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{
"version": "9.16.4.42",
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{
"version": "9.16.4.48",
"status": "affected"
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{
"version": "9.16.4.55",
"status": "affected"
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{
"version": "9.16.4.57",
"status": "affected"
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{
"version": "9.16.4.61",
"status": "affected"
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{
"version": "9.16.4.62",
"status": "affected"
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{
"version": "9.16.4.67",
"status": "affected"
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{
"version": "9.16.4.70",
"status": "affected"
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{
"version": "9.16.4.71",
"status": "affected"
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{
"version": "9.16.4.76",
"status": "affected"
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{
"version": "9.16.4.82",
"status": "affected"
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{
"version": "9.16.4.84",
"status": "affected"
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{
"version": "9.17.1",
"status": "affected"
},
{
"version": "9.17.1.7",
"status": "affected"
},
{
"version": "9.17.1.9",
"status": "affected"
},
{
"version": "9.17.1.10",
"status": "affected"
},
{
"version": "9.17.1.11",
"status": "affected"
},
{
"version": "9.17.1.13",
"status": "affected"
},
{
"version": "9.17.1.15",
"status": "affected"
},
{
"version": "9.17.1.20",
"status": "affected"
},
{
"version": "9.17.1.30",
"status": "affected"
},
{
"version": "9.17.1.33",
"status": "affected"
},
{
"version": "9.17.1.39",
"status": "affected"
},
{
"version": "9.18.1",
"status": "affected"
},
{
"version": "9.18.1.3",
"status": "affected"
},
{
"version": "9.18.2",
"status": "affected"
},
{
"version": "9.18.2.5",
"status": "affected"
},
{
"version": "9.18.2.7",
"status": "affected"
},
{
"version": "9.18.2.8",
"status": "affected"
},
{
"version": "9.18.3",
"status": "affected"
},
{
"version": "9.18.3.39",
"status": "affected"
},
{
"version": "9.18.3.46",
"status": "affected"
},
{
"version": "9.18.3.53",
"status": "affected"
},
{
"version": "9.18.3.55",
"status": "affected"
},
{
"version": "9.18.3.56",
"status": "affected"
},
{
"version": "9.18.4",
"status": "affected"
},
{
"version": "9.18.4.5",
"status": "affected"
},
{
"version": "9.18.4.8",
"status": "affected"
},
{
"version": "9.18.4.22",
"status": "affected"
},
{
"version": "9.18.4.24",
"status": "affected"
},
{
"version": "9.18.4.29",
"status": "affected"
},
{
"version": "9.18.4.34",
"status": "affected"
},
{
"version": "9.18.4.40",
"status": "affected"
},
{
"version": "9.19.1",
"status": "affected"
},
{
"version": "9.19.1.5",
"status": "affected"
},
{
"version": "9.19.1.9",
"status": "affected"
},
{
"version": "9.19.1.12",
"status": "affected"
},
{
"version": "9.19.1.18",
"status": "affected"
},
{
"version": "9.19.1.22",
"status": "affected"
},
{
"version": "9.19.1.24",
"status": "affected"
},
{
"version": "9.19.1.27",
"status": "affected"
},
{
"version": "9.19.1.28",
"status": "affected"
},
{
"version": "9.19.1.31",
"status": "affected"
},
{
"version": "9.20.1",
"status": "affected"
},
{
"version": "9.20.1.5",
"status": "affected"
},
{
"version": "9.20.2",
"status": "affected"
},
{
"version": "9.20.2.10",
"status": "affected"
},
{
"version": "9.20.2.21",
"status": "affected"
},
{
"version": "9.20.2.22",
"status": "affected"
},
{
"version": "9.20.3",
"status": "affected"
},
{
"version": "9.20.3.4",
"status": "affected"
},
{
"version": "9.22.1.1",
"status": "affected"
},
{
"version": "9.22.1.2",
"status": "affected"
}
]
},
{
"vendor": "Cisco",
"product": "Cisco Secure Firewall Threat Defense (FTD) Software",
"versions": [
{
"version": "6.2.3",
"status": "affected"
},
{
"version": "6.2.3.1",
"status": "affected"
},
{
"version": "6.2.3.2",
"status": "affected"
},
{
"version": "6.2.3.3",
"status": "affected"
},
{
"version": "6.2.3.4",
"status": "affected"
},
{
"version": "6.2.3.5",
"status": "affected"
},
{
"version": "6.2.3.6",
"status": "affected"
},
{
"version": "6.2.3.7",
"status": "affected"
},
{
"version": "6.2.3.8",
"status": "affected"
},
{
"version": "6.2.3.10",
"status": "affected"
},
{
"version": "6.2.3.11",
"status": "affected"
},
{
"version": "6.2.3.9",
"status": "affected"
},
{
"version": "6.2.3.12",
"status": "affected"
},
{
"version": "6.2.3.13",
"status": "affected"
},
{
"version": "6.2.3.14",
"status": "affected"
},
{
"version": "6.2.3.15",
"status": "affected"
},
{
"version": "6.2.3.16",
"status": "affected"
},
{
"version": "6.2.3.17",
"status": "affected"
},
{
"version": "6.2.3.18",
"status": "affected"
},
{
"version": "6.6.0",
"status": "affected"
},
{
"version": "6.6.0.1",
"status": "affected"
},
{
"version": "6.6.1",
"status": "affected"
},
{
"version": "6.6.3",
"status": "affected"
},
{
"version": "6.6.4",
"status": "affected"
},
{
"version": "6.6.5",
"status": "affected"
},
{
"version": "6.6.5.1",
"status": "affected"
},
{
"version": "6.6.5.2",
"status": "affected"
},
{
"version": "6.6.7",
"status": "affected"
},
{
"version": "6.6.7.1",
"status": "affected"
},
{
"version": "6.6.7.2",
"status": "affected"
},
{
"version": "6.4.0",
"status": "affected"
},
{
"version": "6.4.0.1",
"status": "affected"
},
{
"version": "6.4.0.3",
"status": "affected"
},
{
"version": "6.4.0.2",
"status": "affected"
},
{
"version": "6.4.0.4",
"status": "affected"
},
{
"version": "6.4.0.5",
"status": "affected"
},
{
"version": "6.4.0.6",
"status": "affected"
},
{
"version": "6.4.0.7",
"status": "affected"
},
{
"version": "6.4.0.8",
"status": "affected"
},
{
"version": "6.4.0.9",
"status": "affected"
},
{
"version": "6.4.0.10",
"status": "affected"
},
{
"version": "6.4.0.11",
"status": "affected"
},
{
"version": "6.4.0.12",
"status": "affected"
},
{
"version": "6.4.0.13",
"status": "affected"
},
{
"version": "6.4.0.14",
"status": "affected"
},
{
"version": "6.4.0.15",
"status": "affected"
},
{
"version": "6.4.0.16",
"status": "affected"
},
{
"version": "6.4.0.17",
"status": "affected"
},
{
"version": "6.4.0.18",
"status": "affected"
},
{
"version": "7.0.0",
"status": "affected"
},
{
"version": "7.0.0.1",
"status": "affected"
},
{
"version": "7.0.1",
"status": "affected"
},
{
"version": "7.0.1.1",
"status": "affected"
},
{
"version": "7.0.2",
"status": "affected"
},
{
"version": "7.0.2.1",
"status": "affected"
},
{
"version": "7.0.3",
"status": "affected"
},
{
"version": "7.0.4",
"status": "affected"
},
{
"version": "7.0.5",
"status": "affected"
},
{
"version": "7.0.6",
"status": "affected"
},
{
"version": "7.0.6.1",
"status": "affected"
},
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