CVE-2026-112276
Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormap
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 19, 2026
- Updated
- Oct 19, 2026
- Reserved
- Oct 19, 2026
Description
Netpbm through 11.16.00 contains a heap out-of-bounds read vulnerability in rasttopnm that allows attackers to read heap memory by supplying Sun rasterfiles with short colormaps. Attackers can craft colormapped rasterfiles with pixel bytes exceeding the palette length to leak up to 255 adjacent heap bytes into the PNM output or crash the program.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.1 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H | VulnCheck |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
NetpbmNetpbm |
|
References
- https://hackmd.io/@haindpwn/netpbm-sunraster-rle-oob-write-palette-oob-readthird-party-advisory
- https://sourceforge.net/p/netpbm/code/5400/tree/advanced/converter/other/rasttopnm.ctechnical-description
- https://sourceforge.net/p/netpbm/code/5400/tree/advanced/converter/other/rast.ctechnical-description
- https://netpbm.sourceforge.net/product
- VulnCheck Advisory: Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormapthird-party-advisory
- https://hackmd.io/@haindpwn/cve-2026-112275-112276-netpbm-sunraster-rle-oob-write-palette-oob-readexploit
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