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CVE-2012-0053

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…

Medium4.3EPSS 82.2%
Published
Updated
Reserved
Assigned by
redhat

Description

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.

Timeline

  1. ID reserved

    By redhat

  2. · 52 days later

    Published

  3. · 13 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2012-0053, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0Medium4.3AV:N/AC:M/Au:N/C:P/I:N/A:N
EPSS (exploitation in 30 days)
82.2% · top 0.3% of all CVEs (8 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.

Weakness

  • n/a

Affected products

  • n/a

    • affected n/a

References (45)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .