CVE-2026-1489
Full vulnerability record from the local CVENow database.
Description
A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.
Severity
MEDIUM
CVSS score
5.4
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-01-27 15:15:57.370000
Last modified
2026-11-05 17:18:15.837000
View original CVE JSON
{
"id": "CVE-2026-1489",
"sourceIdentifier": "[email protected]",
"published": "2026-01-27T15:15:57.370",
"lastModified": "2026-11-05T17:18:15.837",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable."
},
{
"lang": "es",
"value": "Se encontró una falla en GLib. Una vulnerabilidad de desbordamiento de entero en su implementación de conversión de mayúsculas y minúsculas Unicode puede llevar a corrupción de memoria. Al procesar cadenas Unicode especialmente diseñadas y extremadamente grandes, un atacante podría desencadenar una asignación de memoria de tamaño insuficiente, lo que resultaría en escrituras fuera de límites. Esto podría causar que las aplicaciones que utilizan GLib para la conversión de cadenas se bloqueen o se vuelvan inestables."
}
],
"affected": [
{
"source": "[email protected]",
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"affectedData": [
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"vendor": "Siemens",
"product": "RUGGEDCOM RST2428P",
"defaultStatus": "unknown",
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"lessThan": "V4.0",
"versionType": "custom",
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],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
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"ssvcV203": [
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"role": "CISA Coordinator",
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},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
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"value": "CWE-787"
}
]
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],
"references": [
{
"url": "https://access.redhat.com/security/cve/CVE-2026-1489",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2433348",
"source": "[email protected]"
},
{
"url": "https://gitlab.gnome.org/GNOME/glib/-/issues/3872",
"source": "[email protected]"
},
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-253495.html",
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}