CVE-2026-33721

MEDIUM

5.3

Beschreibung

MapServer is a system for developing web-based GIS applications. Starting in version 4.2 and prior to version 8.6.1, a heap-buffer-overflow write in MapServer’s SLD (Styled Layer Descriptor) parser lets a remote, unauthenticated attacker crash the MapServer process by sending a crafted SLD with more than 100 Threshold elements inside a ColorMap/Categorize structure (commonly reachable via WMS GetMap with SLD_BODY). Version 8.6.1 patches the issue.

CVE Details

CVSS v3.1 Bewertung5.3

SchweregradMEDIUM

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht3/27/2026

Zuletzt geandert4/1/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

osgeo:mapserver

Schwachen (CWE)

CWE-787

Referenzen

https://github.com/MapServer/MapServer/releases/tag/rel-8-6-1(security-advisories@github.com)

https://github.com/MapServer/MapServer/security/advisories/GHSA-cv4m-mr84-fgjp(security-advisories@github.com)

IOC Korrelationen

Keine Korrelationen erfasst

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