CVE-2026-120431 json
Netpbm before 10.86.51, 11.02.29, and 11.15.07 sgitopnm Heap Buffer Overflow
published 7d ago modified 3d ago also EUVD-2026-115240
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
Netpbm before 10.86.51, 11.x before 11.02.29, and 11.03 before 11.15.07 contains a heap-based buffer overflow in sgitopnm's readChannels() function when processing RLE-compressed SGI images. Attackers can supply crafted SGI files with oversized offset table lengths to write controlled data past the heap buffer, causing crashes or potential code execution.
Patch / fix
- Netpbm Netpbm 10.86.51, 11.02.29, 11.15.07
- netpbm openSUSE Tumbleweed 11.16.1-2.1
opensuse advisories openSUSE-SU-2026:12463-1
Is CVE-2026-120431 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3d ago
Exploit prediction
0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.5 | 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 |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.5 | 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 |
Affected products
- Netpbm Netpbm
Classification
- Weakness
-
- CWE-122 Heap-based Buffer Overflow
References
-
sourceforge.net
/p/netpbm/code/5317/
patch
-
svn.code.sf.net
/p/netpbm/code/!svn/bc/5319/stable/doc/HISTORY
release-notes
-
svn.code.sf.net
/p/netpbm/code/!svn/bc/5318/advanced/doc/HISTORY
release-notes
-
svn.code.sf.net
/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY
release-notes
-
svn.code.sf.net
/p/netpbm/code/!svn/bc/5316/trunk/converter/other/sgitopnm.c
technical-description
-
vulncheck.com
/advisories/netpbm-before-10.86.51-11.02.29-and-11.15.07-sgitopnm-heap-buffer-overflow
third-party-advisory
Sources
- CVE List CVE-2026-120431
- NVD CVE-2026-120431
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.