Is CVE-2009-2281 in the CISA KEV catalog?

No. CVE-2009-2281 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-2281?

CVE-2009-2281 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2009-2281?

CVE-2009-2281 has an EPSS score of 5.95% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-2281?

Upgrade mapserver on debian 11 to 5.4.2-1 or later.

CVE & CISA-KEV Catalog

CVE-2009-2281

HIGHEPSS 92th pctl

10.0

CVSS v2

NVD

Description

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.

CWE-119Buffer Overflow

How to fix

Remediation Available

mapserverDebian

Fixed in:5.4.2-1CVE-2009-2281

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

5.95%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Patch2

Other references5

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.