CVE-2026-100776

높음 8.8CVE-2026-100776 · Published 29/09/2026 · updated 06/10/2026

요약

CVE-2026-100776은(는) firefox (mozilla), thunderbird (mozilla)에 영향을 주는 높음 (CVSS 8.8) 취약점입니다.
향후 30일 내 악용 확률(EPSS): 0.31%, 전체 취약점의 24.1%보다 높음.
조치: 140.17.0, 153.4.0, 157.0.0, 157.0 이상으로 업데이트하세요.

Package	Affected versions	Patched versions
firefox mozilla	`≥ 140.0.0, < 140.17.0≥ 153.0.0, < 153.4.0≥ 154.0.0, < 157.0.0`	`140.17.0153.4.0157.0.0`
thunderbird mozilla	`≥ 140.0, < 140.17.0≥ 153.0, < 153.4.0≥ 154.0, < 157.0`	`140.17.0153.4.0157.0`

Description

Use-after-free 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.

References

bugzilla.mozilla.org/show_bug.cgi · Permissions Required
mozilla.org/security/advisories/mfsa2026-100 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-101 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-102 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-103 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-97 · Vendor Advisory
mozilla.org/security/advisories/mfsa2026-99 · Vendor Advisory

firefox의 다른 취약점

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Package

Affected versions

Patched versions

firefox

mozilla

≥ 140.0.0, < 140.17.0≥ 153.0.0, < 153.4.0≥ 154.0.0, < 157.0.0

140.17.0153.4.0157.0.0

thunderbird

mozilla

≥ 140.0, < 140.17.0≥ 153.0, < 153.4.0≥ 154.0, < 157.0

140.17.0153.4.0157.0

firefox의 다른 취약점

모두 보기 →