Is CVE-2013-5705 being actively exploited?

CVE-2013-5705 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-5705?

CVE-2013-5705 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2013-5705

MEDIUM · CVSS 5.0EPSS 2.7%EU EUVD

apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS score: 2.7% (86th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-5542)
Published: April 15, 2014
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-5542 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

debian / debian linux
debian / debian linux
trustwave / modsecurity

References

http://martin.swende.se/blog/HTTPChunked.html(Exploit, Third Party Advisory)
http://www.debian.org/security/2014/dsa-2991(Third Party Advisory)
https://github.com/SpiderLabs/ModSecurity/commit/f8d441cd25172fdfe5b613442fedfc0da3cc333d(Patch, Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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