CVE-2026-23951

MEDIUM

5.5

Beschreibung

SumatraPDF is a multi-format reader for Windows. All versions contain an off-by-one error in the validation code that only triggers with exactly 2 records, causing an integer underflow in the size calculation. This bug exists in PalmDbReader::GetRecord when opening a crafted Mobi file, resulting in an out-of-bounds heap read that crashes the app. There are no published fixes at the time of publication.

CVE Details

CVSS v3.1 Bewertung5.5

SchweregradMEDIUM

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

AngriffsvektorLOCAL

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht1/22/2026

Zuletzt geandert2/17/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

sumatrapdfreader:sumatrapdf

Schwachen (CWE)

CWE-125CWE-191CWE-193

Referenzen

https://github.com/sumatrapdfreader/sumatrapdf/blob/master/src/PalmDbReader.cpp(security-advisories@github.com)

https://github.com/sumatrapdfreader/sumatrapdf/security/advisories/GHSA-hj4w-c5x8-p2hv(security-advisories@github.com)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.