Is CVE-2009-0841 actively exploited?

CVE-2009-0841 has no public evidence of in-the-wild exploitation as of 2026-04-23.

What is the CVSS score for CVE-2009-0841?

CVE-2009-0841 has a CVSS score of 10 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

How do I patch CVE-2009-0841?

Patch guidance is available from osgeo security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2009-0841.

CVE-2009-0841 - remediation guidance & executive summary

Q: Which products are affected by CVE-2009-0841?

42 products: osgeo mapserver, osgeo mapserver, osgeo mapserver, osgeo mapserver, osgeo mapserver, and 37 more.

Description

Directory traversal vulnerability in mapserv.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2, when running on Windows with Cygwin, allows remote attackers to create arbitrary files via a .. (dot dot) in the id parameter.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: complete
Integrity: complete
Availability: complete
Weaknesses: CWE-22 · Path Traversal

Metadata

Primary Vendor: OSGEO
Published: 3/31/2009
Last Modified: 4/23/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

osgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverosgeo : mapserverumn : mapserverumn : mapserverumn : mapserver

Remediation Guidance

Executive Summary

View on NIST NVD