CVE-2026-92240

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{"bugzilla": {"description": "thunderbird: Out-of-bounds read in IMAP response parser", "id": "2534187", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2534187"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:\nA malicious or compromised IMAP server can trigger an out-of-bounds read in\nthe IMAP response parser by sending an untagged '* ID' response, crashing\nThunderbird. The affected parsing path is reachable before authentication."], "name": "CVE-2026-92240", "public_date": "2026-09-15T19:42:53Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-92240\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-92240\nhttps://www.mozilla.org/security/advisories/mfsa2026-95/#CVE-2026-92240"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Low"}

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