CVE-2026-100788
Full vulnerability record from the local CVENow database.
Description
Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
Severity
CRITICAL
CVSS score
9.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-09-29 13:17:43.817000
Last modified
2026-10-19 17:27:54.383000
View original CVE JSON
{
"id": "CVE-2026-100788",
"sourceIdentifier": "[email protected]",
"published": "2026-09-29T13:17:43.817",
"lastModified": "2026-10-19T17:27:54.383",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
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},
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{
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}
]
},
{
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{
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}
],
"metrics": {
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"cvssData": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
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}
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"configurations": [
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"references": [
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"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2072413",
"source": "[email protected]",
"tags": [
"Permissions Required"
]
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-100/",
"source": "[email protected]",
"tags": [
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}