CVE-2026-120431

EUVD-2026-115240
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
netpbm_projectnetpbm
𝑥
< 10.86.51
CNA
netpbm_projectnetpbm
11.0 ≤
𝑥
< 11.2.29
CNA
netpbm_projectnetpbm
11.3 ≤
𝑥
< 11.15.7
CNA
Common Weakness Enumeration
References
https://sourceforge.net/p/netpbm/code/5317/
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5316/trunk/converter/other/sgitopnm.c
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5318/advanced/doc/HISTORY
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5319/stable/doc/HISTORY
https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY
https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.29-and-11.15.07-sgitopnm-heap-buffer-overflow