Osgeo: >> Mapserver >> 6.4.3 Security Vulnerabilities
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.
CVSS Score
5.3
EPSS Score
0.002
Published
2026-03-27
MapServer before 7.0.8, 7.1.x and 7.2.x before 7.2.3, 7.3.x and 7.4.x before 7.4.5, and 7.5.x and 7.6.x before 7.6.3 does not properly enforce the MS_MAP_NO_PATH and MS_MAP_PATTERN restrictions that are intended to control the locations from which a mapfile may be loaded (with MapServer CGI).
CVSS Score
5.3
EPSS Score
0.011
Published
2021-05-06
Stack-based buffer overflow in MapServer before 6.0.6, 6.2.x before 6.2.4, 6.4.x before 6.4.5, and 7.0.x before 7.0.4 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving WFS get feature requests.
CVSS Score
9.8
EPSS Score
0.06
Published
2017-03-15
In MapServer before 7.0.3, OGR driver error messages are too verbose and may leak sensitive information if data connection fails.
CVSS Score
7.5
EPSS Score
0.004
Published
2016-12-08