Out-of-bounds Read in Netpbm
CVE-2026-120437
Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an out-of-bounds read vulnerability in the tgatoppm converter's get_pixel() function that uses unchecked pixel values as color map indexes. Attackers can supply a crafted color-mapped Targa file whose pixel values exceed the declared color map bounds to crash the converter or leak adjacent memory into the output image.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- sourceforge.net/p/netpbm/code/5334/ (patch)
- svn.code.sf.net/p/netpbm/code/!svn/bc/5358/stable/doc/HISTORY (release-notes)
- svn.code.sf.net/p/netpbm/code/!svn/bc/5357/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/5333/trunk/converter/ppm/tgatoppm.c (technical-description)
- www.vulncheck.com/advisories/netpbm-before-10.86.51-11.02.30-and-11.15.08-out-o… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-120437?
- CVE-2026-120437 is a medium-severity vulnerability in Netpbm, classified under Out-of-bounds Read. CVSS score: 6.1/10. Published 2026-11-02.
- How severe is CVE-2026-120437?
- Medium severity. CVSS v3 base score is 6.1 out of 10.