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MapServer · weakness class

Memory Corruption

2 CVEs

Every dot is a CVE in what this vendor ships; the named ones are the most at risk.

Every one of the 2 is a mark on the map. Named now: 1 to 2, most at risk first.

  1. MapServer has heap buffer overflow in SLD `Categorize` Threshold parsingCVE-2026-33721MapServer · CVSS 5.3 · 1.2% likely

    CWE-787

  2. MapServer: NULL pointer dereference in SLD `<ElseFilter>` rule parsing reachable via WMS `SLD_BODY`CVE-2026-45104MapServer · CVSS 7.5 · 0.3% likely

    CWE-129

exploited in the wildcheck availableringed, named or not: CyberSIXT has reported on it

Zoom in on the map and the dots under the middle of it are named where they are.

Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-15 · CISA KEV checked 2026-11-15. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.