libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which al
Noroxi assessment
Priority: Monitor (action score 32/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 1.5% (FIRST EPSS); higher than 73.9% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: ffmpeg (Debian:11) 7:4.3.7-0+deb11u1; ffmpeg (Debian:12) 7:5.1.2-1; ffmpeg-4 (openSUSE:Tumbleweed) 4.4.5-7.1.
Low priority for now. Upgrade to ffmpeg (Debian:11) 7:4.3.7-0+deb11u1; ffmpeg (Debian:12) 7:5.1.2-1; ffmpeg-4 (openSUSE:Tumbleweed) 4.4.5-7.1 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
libavcodec/pthread_frame.c in FFmpeg before 5.1.2, as used in VLC and other products, leaves stale hwaccel state in worker threads, which allows attackers to trigger a use-after-free and execute arbitrary code in some circumstances (e.g., hardware re-initialization upon a mid-video SPS change when Direct3D11 is used).
- Published
- Mar 29, 2023
- Updated
- Jun 17, 2026
- EPSS
- 1.5% · 74th percentile
- CWE
- CWE-416
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Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.5%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| ffmpeg | ffmpeg | cpe:2.3:a:ffmpeg:ffmpeg |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ffmpeg ffmpegbefore 5.1.2
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:11 | ffmpeg | before 7:4.3.7-0+deb11u1 | 7:4.3.7-0+deb11u1 |
| Debian:12 | ffmpeg | before 7:5.1.2-1 | 7:5.1.2-1 |
| openSUSE:Tumbleweed | ffmpeg-4 | before 4.4.5-7.1 | 4.4.5-7.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | ffmpeg | before 3.4.2-150000.4.53.2 | 3.4.2-150000.4.53.2 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | ffmpeg | before 3.4.2-150200.11.28.1 | 3.4.2-150200.11.28.1 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | ffmpeg | before 3.4.2-150200.11.28.1 | 3.4.2-150200.11.28.1 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | ffmpeg-4 | before 4.4-150400.3.15.1 | 4.4-150400.3.15.1 |
| SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | ffmpeg-4 | before 4.4-150400.3.15.1 | 4.4-150400.3.15.1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP6 | ffmpeg-4 | before 4.4.5-150600.13.19.1 | 4.4.5-150600.13.19.1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP6 | ffmpeg-4 | before 4.4.5-150600.13.19.1 | 4.4.5-150600.13.19.1 |
Same product
ffmpeg: all recordsOther highest-scoring records for the same primary product.
- CVE-2009-4637FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unknown vectors that trigger45Plan
- CVE-2016-10190Heap-based buffer overflow in libavformat/http.c in FFmpeg before 2.8.10, 3.0.x before 3.0.5, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 all42Plan
- CVE-2009-4634Multiple integer underflows in FFmpeg 0.5 allow remote attackers to cause a denial of service and possibly execute arbitrary code via a craf42Plan
- CVE-2009-4633vorbis_dec.c in FFmpeg 0.5 uses an assignment operator when a comparison operator was intended, which might allow remote attackers to cause 42Plan
- CVE-2016-10192Heap-based buffer overflow in ffserver.c in FFmpeg before 2.8.10, 3.0.x before 3.0.5, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 allows remo41Plan
- CVE-2016-10191Heap-based buffer overflow in libavformat/rtmppkt.c in FFmpeg before 2.8.10, 3.0.x before 3.0.5, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 41Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:ffmpeg | 7:5.1.2-1 · Debian:12 | Package registry (OSV) |
| opensuse:ffmpeg | 3.4.2-150200.11.28.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:ffmpeg-4 | 4.4-150400.3.15.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| suse:ffmpeg | 3.4.2-150200.11.28.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | Package registry (OSV) |
| suse:ffmpeg-4 | 4.4-150400.3.15.1 · SUSE:Linux Enterprise Module for Desktop Applications 15 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-416 · Use After FreeCVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Root cause
After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.
The bug in code
The whole CWE-416 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);Fixed
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.ffmpeg.org/gitweb/ffmpeg.git/commit/cc867f2c09d2b69cee8a0eccd62aff002cbbfe11
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOMB6WRUC55VWV25IKJTV22KARBUGWGQ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PQHNSWXFUN3VJ3AO2AEJUK3BURSGM5G2/
- security.gentoo.org/glsa/202312-14
- wrv.github.io/h26forge.pdf
Vendor advisories and official records. Exploit/PoC links are deliberately left out.