VDB
CVE-2026-4724
CVE-2026-4724
PUBLISHED
CVSS 9.100000381469727 CRITICAL
Undefined behavior in the Audio/Video component. This vulnerability affects Firefox < 149.
EPSS 0.02% · 4.4th percentile
Risk Scores
CVSS 3.1
9.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score
0.02%
4.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| mozilla | firefox | 0 |
| Mozilla | Thunderbird | 149 |
| Mozilla | Firefox | 149 |
| mozilla | thunderbird | 0 |
Exploit Intelligence
- CIRCL seen: CVE-2026-4724 (circl-sighting)
- https://bugzilla.mozilla.org/show_bug.cgi?id=2014865 (circl)
- https://www.mozilla.org/security/advisories/mfsa2026-20/ (circl)
- https://www.mozilla.org/security/advisories/mfsa2026-23/ (circl)
- mfsa2026-23.yml (github-poc)
- mfsa2026-23.yml (github-poc)
- mfsa2026-23.yml (github-poc)
- mfsa2026-23.yml (github-poc)
- 2026.xml (github-poc)
- 2026.xml (github-poc)
…and 2 more exploits
Timeline
- Mar 24, 2026 CVE Published
- Mar 25, 2026 EPSS Score
- Mar 25, 2026 Coalition ESS Score
- Mar 26, 2026 EPSS Score
- Mar 27, 2026 Coalition ESS Score
- Mar 29, 2026 PoC Published
- Apr 13, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
References
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-20/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-24/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-23/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-22/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-21/ advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=2014865 url
- https://www.mozilla.org/security/advisories/mfsa2026-20/ url
- https://www.mozilla.org/security/advisories/mfsa2026-23/ url
- https://nvd.nist.gov/vuln/detail/CVE-2026-4724 advisory
- https://www.mozilla.org/security/advisories/mfsa2026-20 url
- https://www.mozilla.org/security/advisories/mfsa2026-23 url