CVE-2026-111145

MediumCVSS 6.1/10Last modified Oct 21, 2026

Description

ytnef through 2.1.2 contains a heap out-of-bounds read vulnerability in DecompressRTF() in lib/ytnef.c that never validates uncompressedSize for uncompressed RTF streams. Attackers can supply a crafted winmail.dat TNEF attachment with a malicious PT_BINARY MAPI property to crash ytnefprint or libytnef callers and leak adjacent heap memory.

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Weakness enumeration

CWE-125

Affected software

VendorProductVersions
Yerazeytnef<= 2.1.2

References

Timeline

Published
Oct 15, 2026
Last modified
Oct 21, 2026
NVD status
Deferred

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