THREATPORT/VULNERABILITY/CVE-2009-2281
HIGH SEVERITY

CVE-2009-2281

Mapserver vulnerability

CVSS
10.0
EPSS
5.9%
EPSS pct
93th
Exploited
No known
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
Affected vendor
Osgeo
Affected product
Mapserver
CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2009-10-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 5.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 93% of all scored CVEs.

Check your external exposure to CVE-2009-2281

  • Confirm whether Osgeo Mapserver is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2009-2281.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-2281

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-2281 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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