CVE-2026-75141
Last modified
CVE-2026-75141 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. FFmpeg before commit acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. EPSS estimates a 0.14% chance of exploitation in the next 30 days.
Description
FFmpeg before commit acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. A crafted HEVC input file triggers the overflow during muxing.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| FFmpeg | FFmpeg | < acf5d7cdc1f9ae8752c23e1ea8d7f355ed780781 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-75141?
How severe is CVE-2026-75141?
How do I fix CVE-2026-75141?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-75114Joomla Extension - yootheme.com - Open redirect in CommentCo…5.1
- CVE-2026-75115Joomla Extension - yootheme.com - Authenticated, privileged …7
- CVE-2026-7512A flaw has been found in UTT HiPER 1200GW up to 2.5.3-1703. …8.8
- CVE-2026-7513A vulnerability has been found in UTT HiPER 1200GW up to 2.5…8.8
- CVE-2026-75130Context7 through 2.1.2 contains a prompt injection vulnerabi…9
- CVE-2026-75140jsoup through 1.23.2, fixed in commit 862ba2f, contains an u…7.5
- CVE-2026-75142FFmpeg before commit 9d786e4 contains a stack buffer overflo…7.8
- CVE-2026-75143FFmpeg before commit 1c10bcc contains a heap buffer overflow…9.8
- CVE-2026-75144FFmpeg before commit 1cdeb3c contains a heap buffer overflow…7.8
- CVE-2026-75145FFmpeg before commit b4c199c contains an incorrect integer n…5.8
- CVE-2026-75146FFmpeg before commit 65b0dab contains an out-of-bounds read …8.1
- CVE-2026-75147FFmpeg before commit 983dae9 contains an out-of-bounds read …7.1
Are you affected by CVE-2026-75141?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST