CVE-2026-120245
FFmpeg 0.10 through 9.0.2 Uninitialized Memory Disclosure via Sun Raster Decoder
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Passive
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
FFmpeg 0.10 through 9.0.2 Uninitialized Memory Disclosure via Sun Raster Decoder
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
- Record
CVE-2026-120245- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-908
- Updated
- 2026-11-02
EUVDEUVD-2026-114742
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
- Record
EUVD-2026-114742- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-c346-mwjq-88hv
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in...
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
- Record
GHSA-c346-mwjq-88hv- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/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 - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-908
- Updated
- 2026-11-02
NVD
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
- Record
CVE-2026-120245- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/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 - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-908
- Updated
- 2026-11-03
OSV
FFmpeg 0.10 through 9.0.2 Uninitialized Memory Disclosure via Sun Raster Decoder
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
- Record
CVE-2026-120245- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-908
- Updated
- 2026-11-04
OSVDEBIAN-CVE-2026-120245
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
- Record
DEBIAN-CVE-2026-120245- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/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 - Updated
- 2026-11-03
OSVUBUNTU-CVE-2026-120245
FFmpeg 0.10 through 9.0.2 contains a use of uninitialized resource vulnerability in sunrast_decode_frame() that leaks heap memory when decoding truncated 1-bit and 4-bit paletted Sun Raster images. Attackers can craft a truncated Sun Raster file so the uncleared temporary bitmap is expanded into PAL8 pixels, exposing stale heap contents such as allocator words in decoded output.
- Record
UBUNTU-CVE-2026-120245- CVSS 4.0
- 6.8 Medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-05
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
ffmpegDebian:12 |
All versions, plus listed versions 7:5.1.3-17:5.1.3-27:5.1.4-0+deb12u17:5.1.5-0+deb12u17:5.1.6-0+deb12u1 Show 45 moreShow less7:5.1.7-0+deb12u17:5.1.8-0+deb12u17:5.1.9-0+deb12u17:6.0-17:6.0-27:6.0-37:6.0-47:6.0-57:6.0-67:6.0-77:6.0-87:6.0-97:6.1-17:6.1-27:6.1-37:6.1-47:6.1-57:6.1.1-17:6.1.1-27:6.1.1-37:6.1.1-47:6.1.1-57:7.0-17:7.0.1-17:7.0.1-27:7.0.1-37:7.0.1-47:7.0.1-57:7.0.2-17:7.0.2-27:7.0.2-37:7.1-17:7.1-27:7.1-37:7.1-47:7.1.1-17:7.1.2-17:7.1.3-17:8.0-17:8.0-27:8.0.1-17:8.0.1-27:8.0.1-37:8.1-17:8.1-2 |
None known |
ffmpegDebian:13 |
All versions, plus listed versions 7:7.1.1-17:7.1.2-0+deb13u17:7.1.2-17:7.1.3-0+deb13u17:7.1.3-1 Show 22 moreShow less7:7.1.4-0+deb13u17:7.1.5-0+deb13u17:8.0-17:8.0-27:8.0.1-17:8.0.1-27:8.0.1-37:8.1-17:8.1-27:8.1-37:8.1.1-17:8.1.1-27:8.1.1-37:8.1.1-47:8.1.2-17:8.1.2-27:9.0-17:9.0.1-17:9.0.2-17:9.0.2-27:9.0.2-37:9.0.2-4 |
None known |
ffmpegDebian:14 |
All versions, plus listed versions 7:7.1.1-17:7.1.2-17:7.1.3-17:8.0-17:8.0-2 Show 18 moreShow less7:8.0.1-17:8.0.1-27:8.0.1-37:8.1-17:8.1-27:8.1-37:8.1.1-17:8.1.1-27:8.1.1-37:8.1.1-47:8.1.2-17:8.1.2-27:9.0-17:9.0.1-17:9.0.2-17:9.0.2-27:9.0.2-37:9.0.2-4 |
None known |
libavUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 6:0.8.7-1ubuntu26:9.10-1ubuntu16:9.10-1ubuntu26:9.10-1ubuntu56:9.10-1ubuntu6 Show 9 moreShow less6:9.10-1ubuntu76:9.11-2ubuntu16:9.11-2ubuntu26:9.13-0ubuntu0.14.04.16:9.14-0ubuntu0.14.04.16:9.16-0ubuntu0.14.04.16:9.18-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.16:9.20-0ubuntu0.14.04.1+esm1 |
None known |
ffmpegUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 7:2.7.2-1build17:2.8.1-1ubuntu17:2.8.2-1ubuntu17:2.8.3-17:2.8.4-1 Show 31 moreShow less7:2.8.4-1ubuntu17:2.8.4-1ubuntu27:2.8.4-1ubuntu37:2.8.4-1ubuntu47:2.8.6-1ubuntu17:2.8.6-1ubuntu27:2.8.8-0ubuntu0.16.04.17:2.8.10-0ubuntu0.16.04.17:2.8.11-0ubuntu0.16.04.17:2.8.14-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.17:2.8.15-0ubuntu0.16.04.1+esm17:2.8.17-0ubuntu0.17:2.8.17-0ubuntu0.1+esm17:2.8.17-0ubuntu0.1+esm27:2.8.17-0ubuntu0.1+esm37:2.8.17-0ubuntu0.1+esm47:2.8.17-0ubuntu0.1+esm57:2.8.17-0ubuntu0.1+esm67:2.8.17-0ubuntu0.1+esm77:2.8.17-0ubuntu0.1+esm87:2.8.17-0ubuntu0.1+esm97:2.8.17-0ubuntu0.1+esm107:2.8.17-0ubuntu0.1+esm117:2.8.17-0ubuntu0.1+esm127:2.8.17-0ubuntu0.1+esm137:2.8.17-0ubuntu0.1+esm147:2.8.17-0ubuntu0.1+esm157:2.8.17-0ubuntu0.1+esm167:2.8.17-0ubuntu0.1+esm177:2.8.17-0ubuntu0.1+esm18 |
None known |
ffmpegUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 7:3.3.4-27:3.3.4-2build37:3.4-2ubuntu27:3.4-47:3.4-4build1 Show 25 moreShow less7:3.4.1-17:3.4.1-1build17:3.4.2-17:3.4.2-1build17:3.4.2-27:3.4.4-0ubuntu0.18.04.17:3.4.6-0ubuntu0.18.04.17:3.4.8-0ubuntu0.27:3.4.11-0ubuntu0.17:3.4.11-0ubuntu0.1+esm17:3.4.11-0ubuntu0.1+esm27:3.4.11-0ubuntu0.1+esm37:3.4.11-0ubuntu0.1+esm47:3.4.11-0ubuntu0.1+esm57:3.4.11-0ubuntu0.1+esm67:3.4.11-0ubuntu0.1+esm77:3.4.11-0ubuntu0.1+esm87:3.4.11-0ubuntu0.1+esm97:3.4.11-0ubuntu0.1+esm107:3.4.11-0ubuntu0.1+esm117:3.4.11-0ubuntu0.1+esm127:3.4.11-0ubuntu0.1+esm137:3.4.11-0ubuntu0.1+esm147:3.4.11-0ubuntu0.1+esm157:3.4.11-0ubuntu0.1+esm16 |
None known |
ffmpegUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 7:4.1.4-1build27:4.2.1-27:4.2.1-2ubuntu17:4.2.2-1build17:4.2.2-1ubuntu1 Show 21 moreShow less7:4.2.4-1ubuntu0.17:4.2.4-1ubuntu0.1+esm17:4.2.7-0ubuntu0.17:4.2.7-0ubuntu0.1+esm17:4.2.7-0ubuntu0.1+esm27:4.2.7-0ubuntu0.1+esm37:4.2.7-0ubuntu0.1+esm47:4.2.7-0ubuntu0.1+esm57:4.2.7-0ubuntu0.1+esm67:4.2.7-0ubuntu0.1+esm77:4.2.7-0ubuntu0.1+esm87:4.2.7-0ubuntu0.1+esm97:4.2.7-0ubuntu0.1+esm107:4.2.7-0ubuntu0.1+esm117:4.2.7-0ubuntu0.1+esm127:4.2.7-0ubuntu0.1+esm137:4.2.7-0ubuntu0.1+esm147:4.2.7-0ubuntu0.1+esm157:4.2.7-0ubuntu0.1+esm167:4.2.7-0ubuntu0.1+esm177:4.2.7-0ubuntu0.1+esm18 |
None known |
ffmpegUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 7:4.4-6ubuntu57:4.4.1-2ubuntu17:4.4.1-3ubuntu17:4.4.1-3ubuntu27:4.4.1-3ubuntu3 Show 19 moreShow less7:4.4.1-3ubuntu57:4.4.2-0ubuntu0.22.04.17:4.4.2-0ubuntu0.22.04.1+esm17:4.4.2-0ubuntu0.22.04.1+esm27:4.4.2-0ubuntu0.22.04.1+esm37:4.4.2-0ubuntu0.22.04.1+esm47:4.4.2-0ubuntu0.22.04.1+esm57:4.4.2-0ubuntu0.22.04.1+esm67:4.4.2-0ubuntu0.22.04.1+esm77:4.4.2-0ubuntu0.22.04.1+esm87:4.4.2-0ubuntu0.22.04.1+esm97:4.4.2-0ubuntu0.22.04.1+esm107:4.4.2-0ubuntu0.22.04.1+esm117:4.4.2-0ubuntu0.22.04.1+esm127:4.4.2-0ubuntu0.22.04.1+esm137:4.4.2-0ubuntu0.22.04.1+esm147:4.4.2-0ubuntu0.22.04.1+esm157:4.4.2-0ubuntu0.22.04.1+esm167:4.4.2-0ubuntu0.22.04.1+esm17 |
None known |
ffmpegUbuntu:Pro:24.04:LTS |
All versions, plus listed versions 7:6.0-6ubuntu17:6.0-9ubuntu17:6.1-2ubuntu17:6.1-3ubuntu17:6.1-4ubuntu1 Show 17 moreShow less7:6.1-5ubuntu17:6.1.1-1ubuntu17:6.1.1-3ubuntu17:6.1.1-3ubuntu57:6.1.1-3ubuntu5+esm17:6.1.1-3ubuntu5+esm27:6.1.1-3ubuntu5+esm37:6.1.1-3ubuntu5+esm47:6.1.1-3ubuntu5+esm57:6.1.1-3ubuntu5+esm67:6.1.1-3ubuntu5+esm77:6.1.1-3ubuntu5+esm87:6.1.1-3ubuntu5+esm107:6.1.1-3ubuntu5+esm117:6.1.1-3ubuntu5+esm127:6.1.1-3ubuntu5+esm137:6.1.1-3ubuntu5+esm15 |
None known |
ffmpegUbuntu:26.10 |
All versions, plus listed versions 7:8.0.1-3ubuntu27:8.1-3ubuntu37:8.1.2-2ubuntu2 |
None known |
ffmpegUbuntu:Pro:26.04:LTS |
All versions, plus listed versions 7:7.1.1-1ubuntu47:7.1.2-1ubuntu37:7.1.2-1ubuntu47:7.1.3-1ubuntu17:8.0.1-2ubuntu1 Show 6 moreShow less7:8.0.1-3ubuntu17:8.0.1-3ubuntu27:8.0.1-3ubuntu2+esm17:8.0.1-3ubuntu2+esm37:8.0.1-3ubuntu2+esm47:8.0.1-3ubuntu2+esm5 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| facts | NVD, OSV | |
| affected, aliases, facts, references | CVE List, NVD, OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-120245 is a medium vulnerability (CVSS 6.8) in Ffmpeg, published November 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 2nd percentile. No source names a fixed version.
References
code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24877
github.com/FFmpeg/FFmpeg/commit/356a391bf57df2fb80fd61f2821c8c83d15ce180
vulncheck.com/advisories/ffmpeg-0.10-through-9.0.2-uninitialized-memory-disclosure-via-sun-raster-decoder
Show 7 moreShow less
nvd.nist.gov/vuln/detail/CVE-2026-120245
security-tracker.debian.org/tracker/CVE-2026-120245
ubuntu.com/security/CVE-2026-120245
cve.org/CVERecord?id=CVE-2026-120245
Left out here: 13 versions. The JSON record has them.