CVE-2026-111139
Last modified
CVE-2026-111139 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_mask() that allows attackers to read one byte past the image buffer by supplying crafted ICO files. Attackers can provide an ICO whose inner bitmap width is not a multiple of 8, causing a heap over-read that can crash applications calling bmp_decode().. EPSS estimates a 0.13% chance of exploitation in the next 30 days.
Description
NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_mask() that allows attackers to read one byte past the image buffer by supplying crafted ICO files. Attackers can provide an ICO whose inner bitmap width is not a multiple of 8, causing a heap over-read that can crash applications calling bmp_decode().
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| NetSurf | libnsbmp | <= 0.1.7 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
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