Perl 5.10.x allows context-dependent attackers to cause a denial of service (NULL pointer dereference and application crash) by leveraging an ability to inject arguments into a (1) getpeername, (2) readdir, (3) closedir, (4) getsockname, (5) rewinddir, (6) tell, or (7) telldir function call.
CVE-2011-0761
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 94.6%
- KEV
- Not listed
Published
May 13, 2011
Last Modified
April 29, 2026
References (12)
- cret@certhttp://securityreason.com/securityalert/8248
- cret@certhttp://securitytracker.com/id?1025507
- cret@certhttp://www.securityfocus.com/archive/1/517916/100/0/threaded
- cret@certhttp://www.securityfocus.com/bid/47766
- cret@certhttp://www.toucan-system.com/advisories/tssa-2011-03.txt
- cret@certhttps://exchange.xforce.ibmcloud.com/vulnerabilities/67355
- af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/8248
- af854a3a-2127-422b-91ae-364da2661108http://securitytracker.com/id?1025507
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/517916/100/0/threaded
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/47766
- af854a3a-2127-422b-91ae-364da2661108http://www.toucan-system.com/advisories/tssa-2011-03.txt
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/67355
Data Freshness Timeline
(refreshed 9× in last 7d / 41× 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 16:23 UTCEPSS rescore
- 2026-07-05 20:29 UTCOSV refresh
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- 2026-06-17 17:49 UTCEPSS rescore
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- 2026-05-29 13:41 UTCEPSS rescore
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- 2026-05-29 08:00 UTCEG score recompute
- 2026-05-29 08:00 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-26 13:41 UTCEPSS rescore
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- 2026-05-26 10:46 UTCOSV refresh
- 2026-05-26 07:16 UTCEPSS rescore
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- 2026-05-24 16:43 UTCEPSS rescore
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- 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-35725✓ verifiedFirst seen May 3, 2011
Perl 5.10 - Multiple Null Pointer Dereference Denial of Service Vulnerabilities
Open source ↗
Frequently asked(4)
What is CVE-2011-0761?
When was CVE-2011-0761 disclosed?
Is CVE-2011-0761 actively exploited?
How do I remediate CVE-2011-0761?
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