Vulnerability · CVE-2013-4365
Heap-based buffer overflow in the fcgid_header_bucket_read function in fcgid_bucket.c in the mod_fcgid module before 2.3.9 for the Apache HTTP Server allows remote att…
Published Oct 17, 2013 · catalog updated Jun 16, 2026 · mod fcgid
Last checked Nov 7, 2026. A connected source was read within the last 7 days.
Check this week
CVE-2013-4365 is not in CISA KEV. FIRST estimates a 13.60% chance of exploitation in the next 30 days. Check whether you run mod fcgid.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2012-1181 · Medium
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 13.60%
- Remediation
- Version ranges on file
- Affected products
- cpe apache/mod fcgid · cpe debian/debian linux · cpe opensuse/opensuse · cpe suse/cloud
Heap-based buffer overflow in the fcgid_header_bucket_read function in fcgid_bucket.c in the mod_fcgid module before 2.3.9 for the Apache HTTP Server allows remote attackers to have an unspecified impact via unknown vectors.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- cpe apache/mod fcgid< 2.3.9
- cpe debian/debian linux6.0
- cpe debian/debian linux7.0
- cpe opensuse/opensuse11.4
- cpe suse/cloud1.0
- cpe suse/cloud2.0
How to fix CVE-2013-4365
Upgrade
CVE-2013-4365 lists a fix boundary at 2.3.9. Compare the installed build with that boundary before you change production.
Version check
Affected < 2.3.9
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
CVE-2013-4365 is not in CISA KEV. FIRST estimates a 13.60% chance of exploitation in the next 30 days. Check whether you run mod fcgid.
Which versions are affected?
Compare what you have installed with apache/mod fcgid < 2.3.9; debian/debian linux 6.0; debian/debian linux 7.0. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-787: Out-of-bounds Write. EPSS 13.60%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 17, 2013 · Monitored products — critical
Detected
Heap-based buffer overflow in the fcgid_header_bucket_read function in fcgid_bucket.c in the mod_fcgid module before 2.3.9 for the Apache HTTP Server allows remote attackers to have an unspecified impact via unknown vectors.
Jun 16, 2026 · Monitored products — critical
Updated
Heap-based buffer overflow in the fcgid_header_bucket_read function in fcgid_bucket.c in the mod_fcgid module before 2.3.9 for the Apache HTTP Server allows remote attackers to have an unspecified impact via unknown vectors.
Sources
- CVE.orgVulnerability recordCVE-2013-4365
Official CVE identifier
cve.org - Monitored products — criticalVendor advisoryCVE-2013-4365
Heap-based buffer overflow in the fcgid_header_bucket_read function in fcgid_bucket.c in the mod_fcgid module before 2.3.9 for the Apache HTTP Server allows remote attackers to have an unspecified impact via unknown vectors.
nvd.nist.gov - urlscan.ioThreat intelligenceCVE-2013-4365urlscan.io
References
Freshness
Last verified in this catalog Nov 7, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- urlscan.ioNov 6, 2026
- CVE.orgNov 4, 2026
- Monitored products — criticalNov 4, 2026