CVE-2025-69693
CVE-2025-69693 is a medium-severity vulnerability in Ffmpeg with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-208761
- Weakness: CWE-125
- Affected product: Ffmpeg
- Published:
- Last modified:
Description
Out-of-bounds read in FFmpeg 8.0 and 8.0.1 RV60 video decoder (libavcodec/rv60dec.c). The quantization parameter (qp) validation at line 2267 only checks the lower bound (qp < 0) but is missing upper bound validation. The qp value can reach 65 (base value 63 from 6-bit frame header + offset +2 from read_qp_offset) while the rv60_qp_to_idx array has size 64 (valid indices 0-63). This results in out-of-bounds array access at lines 1554 (decode_cbp8), 1655 (decode_cbp16), and 1419/1421 (get_c4x4_set), potentially leading to memory disclosure or crash. A previous fix in commit 61cbcaf93f added validation only for intra frames. This vulnerability affects the released versions 8.0 (released 2025-08-22) and 8.0.1 (released 2025-11-20) and is fixed in git master commit 8abeb879df which will be included in FFmpeg 8.1.
Frequently asked questions
- What is CVE-2025-69693?
- Out-of-bounds read in FFmpeg 8.0 and 8.0.1 RV60 video decoder (libavcodec/rv60dec.c). The quantization parameter (qp) validation at line 2267 only checks the lower bound (qp < 0) but is missing upper bound validation. The qp value can reach 65 (base value 63 from 6-bit frame header + offset +2 from read_qp_offset) while the rv60_qp_to_idx array has size 64 (valid indices 0-63). This results in out-of-bounds array access at lines 1554 (decode_cbp8), 1655 (decode_cbp16), and 1419/1421 (get_c4x4_set), potentially leading to memory disclosure or crash. A previous fix in commit 61cbcaf93f added validation only for intra frames. This vulnerability affects the released versions 8.0 (released 2025-08-22) and 8.0.1 (released 2025-11-20) and is fixed in git master commit 8abeb879df which will be included in FFmpeg 8.1.
- How severe is CVE-2025-69693?
- CVE-2025-69693 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability low.
- Is CVE-2025-69693 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-69693?
- CVE-2025-69693 primarily affects Ffmpeg. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2025-69693?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-69693 have an EU (EUVD) identifier?
- Yes. CVE-2025-69693 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208761.
- When was CVE-2025-69693 published?
- CVE-2025-69693 was published on 2026-03-16 and last updated on 2026-06-17.
References
- https://github.com/FFmpeg/FFmpeg/commit/8abeb879df66ea8d27ce1735925ced5a30813de4
- https://github.com/FFmpeg/FFmpeg/releases/tag/n8.0
- https://github.com/FFmpeg/FFmpeg/releases/tag/n8.0.1
Affected products (2)
- cpe:2.3:a:ffmpeg:ffmpeg:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:ffmpeg:ffmpeg:8.0.1:*:*:*:*:*:*:*
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