CVE-2026-100801
Privilege escalation in the DLL Services component
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
Privilege escalation in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 159, Firefox ESR 153.6, Thunderbird 159, Thunderbird 153.6, Firefox 157, and Firefox ESR 140.17.
Timeline
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- CVE published
- Record last updated
Affected versions
- Mozilla Thunderbird
Version range not reported
- Mozilla Firefox
Version range not reported
References 11
bugzilla.mozilla.org
mozilla.org
- security/advisories/mfsa2026-100
- security/advisories/mfsa2026-101
- security/advisories/mfsa2026-102
- security/advisories/mfsa2026-103
- security/advisories/mfsa2026-118
- security/advisories/mfsa2026-120
- security/advisories/mfsa2026-121
- security/advisories/mfsa2026-122
- security/advisories/mfsa2026-97
- security/advisories/mfsa2026-99