CVE-2026-120435
Netpbm before 10.86.51, 11.02.30, and 11.15.08 Heap Overflow in xpmtoppm
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains a heap buffer overflow in xpmtoppm caused by an unvalidated characters-per-pixel value in the XPM header. Attackers can supply a crafted XPM file with characters-per-pixel greater than 3 to overrun fixed 3-byte colorName hash entries, causing crashes or potentially code execution.
| CWE | CWE-787 |
| Vendor | netpbm |
| Product | netpbm |
| Published | Nov 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Netpbm / Netpbm
0 < 10.86.51 11.0 < 11.02.30 11.03 < 11.15.08
References
sourceforge.net: https://sourceforge.net/p/netpbm/code/5336/ svn.code.sf.net: https://svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY svn.code.sf.net: https://svn.code.sf.net/p/netpbm/code/!svn/bc/5357/advanced/doc/HISTORY svn.code.sf.net: https://svn.code.sf.net/p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY svn.code.sf.net: https://svn.code.sf.net/p/netpbm/code/!svn/bc/5335/trunk/converter/ppm/xpmtoppm.c vulncheck.com: https://www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-heap-overflow-in-xpmtoppm
Credits
Tristan Madani (Talence Security) Bryan Henderson