Multiple integer overflows in GNU Grep before 2.11 might allow context-dependent attackers to execute arbitrary code via vectors involving a long input line that triggers a heap-based buffer overflow.
CVE-2012-5667
- No confirmed exploitation signals yet
A fix is available — apply it.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 59.3%
- KEV
- Not listed
Published
January 3, 2013
Last Modified
April 29, 2026
References (18)
- secalert@redhathttp://git.savannah.gnu.org/cgit/grep.git/commit/?id=8fcf61523644df42e1905c81bed26838e0b04f91
- secalert@redhathttp://git.savannah.gnu.org/cgit/grep.git/commit/?id=cbbc1a45b9f843c811905c97c90a5d31f8e6c189
- secalert@redhathttp://git.sv.gnu.org/gitweb/?p=grep.git%3Ba=shortlog%3Bh=v2.11
- secalert@redhathttp://lists.gnu.org/archive/html/bug-grep/2012-12/msg00004.html
- secalert@redhathttp://openwall.com/lists/oss-security/2012/12/22/6
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2015-1447.html
- secalert@redhathttp://www.securityfocus.com/bid/57033
- secalert@redhathttps://bugs.launchpad.net/ubuntu/+source/grep/+bug/1091473
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=889935
- af854a3a-2127-422b-91ae-364da2661108http://git.savannah.gnu.org/cgit/grep.git/commit/?id=8fcf61523644df42e1905c81bed26838e0b04f91
- af854a3a-2127-422b-91ae-364da2661108http://git.savannah.gnu.org/cgit/grep.git/commit/?id=cbbc1a45b9f843c811905c97c90a5d31f8e6c189
- af854a3a-2127-422b-91ae-364da2661108http://git.sv.gnu.org/gitweb/?p=grep.git%3Ba=shortlog%3Bh=v2.11
- af854a3a-2127-422b-91ae-364da2661108http://lists.gnu.org/archive/html/bug-grep/2012-12/msg00004.html
- af854a3a-2127-422b-91ae-364da2661108http://openwall.com/lists/oss-security/2012/12/22/6
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2015-1447.html
Vendor Advisories for CVE-2012-5667(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | grep-0:2.20-3.el6 | 2015-07-20 | redhat |
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.
Data Freshness Timeline
(refreshed 8× in last 7d / 37× 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.
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
- 2026-07-05 10:29 UTCOSV refresh
- 2026-07-05 02:26 UTCEPSS rescore
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- 2026-06-19 19:23 UTCEPSS rescore
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- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 21:43 UTCOSV refresh
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
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- 2026-06-11 13:56 UTCEPSS rescore
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- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-31 00:14 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-29 01:27 UTCEG score recompute
- 2026-05-29 01:27 UTCVendor advisory
- 2026-05-29 01:27 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
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- 2026-05-26 07:16 UTCEPSS rescore
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- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-21 22:39 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 02:03 UTCOSV refresh
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-23779✓ verifiedFirst seen Dec 31, 2012
Grep < 2.11 - Integer Overflow Crash (PoC)
Open source ↗
Related CVEs(same vendor)
Frequently asked(4)
What is CVE-2012-5667?
When was CVE-2012-5667 disclosed?
Is CVE-2012-5667 actively exploited?
How do I remediate CVE-2012-5667?
Dependency Blast Radius
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