CVE-2013-5704

NONECVSS 0.0Elevated
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • 103 internet-exposed hosts are running an affected version right now
  • High exploitation likelihood — EPSS 60%
CISA-KEV: Not listedEPSS: 60%CVSS: —Exploit: NoneExposed: 103

A fix is available — apply it.

The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass "RequestHeader unset" directives by placing a header in the trailer portion of data sent with chunked transfer coding. NOTE: the vendor states "this is not a security issue in httpd as such."

Live · internet exposure

103 internet-exposed hosts are running an affected version of CVE-2013-5704 right now.

across 34 countries (United States, Japan, Germany, France, Croatia)top: http_server
See the live KEV-Exposure radar →Found passively from public internet-scan data — aggregate, host-redacted.

EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.

CVSS v3
—
EG Score
0.0(none)
EPSS
99.0%
KEV
Not listed

Published

April 15, 2014

Last Modified

May 6, 2026

References (94)

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuapache2.2-bin (2.4.10-1ubuntu1.1) @ utopic2026-05-28ubuntu
redhatmod_cluster-native-0:1.2.9-6.Final_redhat_2.ep6.el72016-01-21redhat
redhathttpd2016-01-21redhat
redhatpatch2015-12-16redhat
redhattomcat-vault-0:1.0.8-4.Final_redhat_4.1.ep7.el62015-12-16redhat
redhattomcat-vault-0:1.0.8-4.Final_redhat_4.1.ep7.el72015-12-16redhat
redhathttpd-0:2.2.15-45.el62015-07-20redhat
redhathttpd-0:2.4.6-31.el72015-03-05redhat
redhathttpd24-httpd-0:2.4.6-25.el72014-12-09redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(9)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 5× in last 7d / 26× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-05 02:26 UTCEPSS rescore
  2. 2026-07-05 01:26 UTCOSV refresh
  3. 2026-07-02 15:21 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-06-30 23:19 UTCEPSS rescore
  6. 2026-06-27 03:05 UTCEPSS rescore
  7. 2026-06-25 13:47 UTCEPSS rescore
  8. 2026-06-25 13:47 UTCEPSS rescore
  9. 2026-06-24 14:02 UTCEPSS rescore
  10. 2026-06-24 14:02 UTCEPSS rescore
  11. 2026-06-23 21:30 UTCEPSS rescore
  12. 2026-06-23 21:30 UTCEPSS rescore
  13. 2026-06-21 01:57 UTCEPSS rescore
  14. 2026-06-21 01:57 UTCEPSS rescore
  15. 2026-06-18 17:49 UTCEPSS rescore
  16. 2026-06-18 17:49 UTCEPSS rescore
  17. 2026-06-17 17:49 UTCEPSS rescore
  18. 2026-06-17 17:49 UTCEPSS rescore
  19. 2026-06-16 17:49 UTCEPSS rescore
  20. 2026-06-16 17:49 UTCEPSS rescore
  21. 2026-06-16 17:49 UTCEPSS rescore
  22. 2026-06-16 13:09 UTCOSV refresh
  23. 2026-06-15 17:44 UTCEPSS rescore
  24. 2026-06-12 23:08 UTCEPSS rescore
  25. 2026-06-11 13:56 UTCEPSS rescore
Show 33 more
  1. 2026-06-10 22:15 UTCEPSS rescore
  2. 2026-06-06 13:45 UTCEPSS rescore
  3. 2026-06-06 13:45 UTCEPSS rescore
  4. 2026-06-05 22:44 UTCEPSS rescore
  5. 2026-06-05 22:44 UTCEPSS rescore
  6. 2026-06-05 06:08 UTCEPSS rescore
  7. 2026-06-05 06:08 UTCEPSS rescore
  8. 2026-06-04 13:09 UTCEPSS rescore
  9. 2026-06-04 13:09 UTCEPSS rescore
  10. 2026-06-02 20:10 UTCEPSS rescore
  11. 2026-06-02 20:10 UTCEPSS rescore
  12. 2026-06-01 13:49 UTCEPSS rescore
  13. 2026-06-01 13:49 UTCEPSS rescore
  14. 2026-05-31 00:14 UTCEPSS rescore
  15. 2026-05-31 00:14 UTCEPSS rescore
  16. 2026-05-29 13:41 UTCEPSS rescore
  17. 2026-05-29 13:41 UTCEPSS rescore
  18. 2026-05-28 19:32 UTCEG score recompute
  19. 2026-05-28 19:32 UTCVendor advisory
  20. 2026-05-28 19:32 UTCGHSA enrichment
  21. 2026-05-27 13:38 UTCEPSS rescore
  22. 2026-05-27 13:38 UTCEPSS rescore
  23. 2026-05-27 13:37 UTCOSV refresh
  24. 2026-05-26 07:16 UTCEPSS rescore
  25. 2026-05-26 07:16 UTCEPSS rescore
  26. 2026-05-22 21:15 UTCEPSS rescore
  27. 2026-05-22 21:15 UTCEPSS rescore
  28. 2026-05-22 21:15 UTCEPSS rescore
  29. 2026-05-21 22:39 UTCEPSS rescore
  30. 2026-05-20 22:37 UTCEPSS rescore
  31. 2026-05-20 22:37 UTCEPSS rescore
  32. 2026-05-18 21:29 UTCEPSS rescore
  33. 2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2013-5704?
CVE-2013-5704 is a none vulnerability published on April 15, 2014. The mod_headers module in the Apache HTTP Server 2.2.22 allows remote attackers to bypass "RequestHeader unset" directives by placing a header in the trailer portion of data sent with chunked transfer coding. NOTE: the vendor states "this is not a security issue in httpd as such."
When was CVE-2013-5704 disclosed?
CVE-2013-5704 was first published in the National Vulnerability Database on April 15, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2013-5704 actively exploited?
CVE-2013-5704 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2013-5704?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-5704, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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