CVE-2026-23951

MEDIUM

5.5

Description

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.

Details CVE

Score CVSS v3.15.5

SeveriteMEDIUM

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

Vecteur d'attaqueLOCAL

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurREQUIRED

Publie1/22/2026

Derniere modification2/17/2026

Sourcenvd

Observations honeypot0

Produits affectes

sumatrapdfreader:sumatrapdf

Faiblesses (CWE)

CWE-125CWE-191CWE-193

References

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)

Correlations IOC

Aucune correlation enregistree

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