CVE-2026-111138

MediumCVSS 5.5/10Last modified Oct 16, 2026

Description

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmp_decode_rle8() and bmp_decode_rle4() because absolute-run bound checks omit the word-alignment pad byte. Attackers can supply a crafted RLE8 or RLE4 BMP ending on an odd-length absolute run to cause a one-byte heap over-read, crashing applications decoding untrusted images.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
NetSurflibnsbmp<= 0.1.7

References

Timeline

Published
Oct 15, 2026
Last modified
Oct 16, 2026
NVD status
Deferred

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CVE-2026-111138: Medium severity, CVSS 5.5 | Vulnix