CVE-2026-120431
7.8, highNetpbm Heap-based Buffer Overflow Vulnerability
- CVSS
- 7.8, high high CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 2 Nov 2026yesterday
Description
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.
Details
- Vendor
- Netpbm
- Product
- Netpbm
- Weakness
- CWE-122 (opens in a new tab)
- Status
- Awaiting analysis
- Updated
- 2 Nov 2026
- Assigner
- disclosure@vulncheck.com
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References 6
Other references 6
- sourceforge.net /p/netpbm/code/5317/ (opens in a new tab)
- svn.code.sf.net /p/netpbm/code/!svn/bc/5316/trunk/converter/other/sgitopnm.c (opens in a new tab)
- svn.code.sf.net /p/netpbm/code/!svn/bc/5318/advanced/doc/HISTORY (opens in a new tab)
- svn.code.sf.net /p/netpbm/code/!svn/bc/5319/stable/doc/HISTORY (opens in a new tab)
- svn.code.sf.net /p/netpbm/code/!svn/bc/5371/super_stable/doc/HISTORY (opens in a new tab)
- vulncheck.com /advisories/netpbm-before-10.86.51-11.02.29-and-11.15.07-sgitopnm-heap-buffer-overflow (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Other Netpbm CVEs
Every Netpbm CVE we holdSame vendor in what we hold, not a known link between the flaws.
- CVE-2026-120434 Netpbm Stack-based Buffer Overflow Vulnerability 7.8, high
- CVE-2026-120435 Netpbm Out-of-Bounds Write Vulnerability 7.8, high
Beyond this page
Is CVE-2026-120431 in your network?
This page tells you how dangerous CVE-2026-120431 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
-
EXYS7600 OCELOT
Find it before attackers do
Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-120431 comes with the devices to patch.
Learn more about EXYS7600 OCELOT -
EXYS7950 KONDRA
Detect it if it's exploited
Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
Learn more about EXYS7950 KONDRA
Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 3 Nov 2026, not the live upstream state.