Is CVE-2012-0053 being actively exploited?

CVE-2012-0053 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-0053?

CVE-2012-0053 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2012-0053

MEDIUM · CVSS 4.3EPSS 82.2%EU EUVD

protocol.c in the Apache HTTP Server 2.2.x through 2.2.21 does not properly restrict header information during construction of Bad Request (aka 400) error documents, which allows remote attackers to obtain the values of HTTPOnly cookies via vectors involving a (1) long or (2) malformed header in conjunction with crafted web script.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:N/A:N
EPSS score: 82.2% (100th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-0092)
Published: January 28, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-0092 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

apache / http server
debian / debian linux
debian / debian linux
debian / debian linux
opensuse / opensuse
redhat / enterprise linux
redhat / enterprise linux
redhat / enterprise linux desktop
redhat / enterprise linux eus
redhat / enterprise linux server
redhat / enterprise linux workstation
redhat / jboss enterprise web server
redhat / storage
suse / linux enterprise server
suse / linux enterprise software development kit

References

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041(Broken Link)
http://httpd.apache.org/security/vulnerabilities_22.html(Vendor Advisory)
http://kb.juniper.net/JSA10585(Third Party Advisory)
http://lists.apple.com/archives/security-announce/2012/Sep/msg00004.html(Broken Link, Mailing List)
http://lists.opensuse.org/opensuse-security-announce/2012-02/msg00026.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2012-03/msg00002.html(Mailing List, Third Party Advisory)
http://marc.info/?l=bugtraq&m=133294460209056&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://marc.info/?l=bugtraq&m=133494237717847&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://marc.info/?l=bugtraq&m=133951357207000&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://marc.info/?l=bugtraq&m=136441204617335&w=2(Issue Tracking, Mailing List, Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2012-0128.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2012-0542.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2012-0543.html(Third Party Advisory)
http://secunia.com/advisories/48551(Not Applicable)
http://support.apple.com/kb/HT5501(Third Party Advisory)
http://svn.apache.org/viewvc?view=revision&revision=1235454(Patch, Vendor Advisory)
http://www.debian.org/security/2012/dsa-2405(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2012:012(Broken Link)
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150(Broken Link)
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html(Third Party Advisory)
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html(Third Party Advisory)
http://www.securityfocus.com/bid/51706(Third Party Advisory, VDB Entry)
https://bugzilla.redhat.com/show_bug.cgi?id=785069(Issue Tracking, Third Party Advisory)
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r05b5357d1f6bd106f41541ee7d87aafe3f5ea4dc3e9bde5ce09baff8%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r1d201e3da31a2c8aa870c8314623caef7debd74a13d0f25205e26f15%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r5f9c22f9c28adbd9f00556059edc7b03a5d5bb71d4bb80257c0d34e4%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9b4b963760a3cb5a4a70c902f325c6c0337fe51d5b8570416f8f8729%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E

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

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