High severity · published Dec 8, 2016
CVE-2016-9839
In MapServer before 7.0.3, OGR driver error messages are too verbose and may leak sensitive information if data connection fails
7.5
CVSS
1.5%
EPSS
No
On KEV
Description
In MapServer before 7.0.3, OGR driver error messages are too verbose and may leak sensitive information if data connection fails.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
Mapserver · Osgeo
through 7.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-9839
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-9839
Broken Link
http://www.securityfocus.com/bid/94856
Vendor Advisory
https://github.com/mapserver/mapserver/pull/5356
More from Mapserver
9.8
CVE-2025-59431
MapServer is a system for developing web-based GIS applications
9.8
CVE-2017-5522
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)…
7.5
CVE-2026-45104
MapServer: NULL pointer dereference in SLD `<ElseFilter>` rule parsing reachable via WMS `SLD_BODY`
7.5
CVE-2026-33721
MapServer has heap buffer overflow in SLD `Categorize` Threshold parsing
7.5
CVE-2010-1678
Mapserver 5.2, 5.4 and 5.6 before 5.6.5-2 improperly validates symbol index values during Mapfile parsing