Perl 5.10.1 allows context-dependent attackers to cause a denial of service (application crash) via a UTF-8 character with a large, invalid codepoint, which is not properly handled during a regular-expression match.
CVE-2009-3626
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 2%CVSS: —Exploit: NoneExposed: 0
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
- 80.4%
- KEV
- Not listed
Published
October 29, 2009
Last Modified
April 23, 2026
References (22)
- secalert@redhathttp://perl5.git.perl.org/perl.git/commit/0abd0d78a73da1c4d13b1c700526b7e5d03b32d4
- secalert@redhathttp://rt.perl.org/rt3/Public/Bug/Display.html?id=69973
- secalert@redhathttp://rt.perl.org/rt3/Ticket/Attachment/617489/295383/
- secalert@redhathttp://secunia.com/advisories/37144
- secalert@redhathttp://securitytracker.com/id?1023077
- secalert@redhathttp://www.openwall.com/lists/oss-security/2009/10/23/8
- secalert@redhathttp://www.osvdb.org/59283
- secalert@redhathttp://www.securityfocus.com/bid/36812
- secalert@redhathttp://www.vupen.com/english/advisories/2009/3023
- secalert@redhathttps://exchange.xforce.ibmcloud.com/vulnerabilities/53939
- secalert@redhathttps://issues.apache.org/SpamAssassin/show_bug.cgi?id=6225
- af854a3a-2127-422b-91ae-364da2661108http://perl5.git.perl.org/perl.git/commit/0abd0d78a73da1c4d13b1c700526b7e5d03b32d4
- af854a3a-2127-422b-91ae-364da2661108http://rt.perl.org/rt3/Public/Bug/Display.html?id=69973
- af854a3a-2127-422b-91ae-364da2661108http://rt.perl.org/rt3/Ticket/Attachment/617489/295383/
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/37144
Data Freshness Timeline
(refreshed 8× in last 7d / 40× 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.
- 2026-07-07 15:11 UTCOSV refresh
- 2026-07-06 16:23 UTCEPSS rescore
- 2026-07-06 02:19 UTCEPSS rescore
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- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-19 02:35 UTCOSV refresh
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- 2026-06-18 17:49 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
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- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-30 14:45 UTCEG score recompute
- 2026-05-30 14:45 UTCGHSA enrichment
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 16:06 UTCOSV refresh
- 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
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- 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
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- 2026-05-20 22:37 UTCEPSS rescore
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Frequently asked(4)
What is CVE-2009-3626?
CVE-2009-3626 is a none vulnerability published on October 29, 2009. Perl 5.10.1 allows context-dependent attackers to cause a denial of service (application crash) via a UTF-8 character with a large, invalid codepoint, which is not properly handled during a regular-expression match.
When was CVE-2009-3626 disclosed?
CVE-2009-3626 was first published in the National Vulnerability Database on October 29, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-3626 actively exploited?
CVE-2009-3626 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 80.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-3626?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3626, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2009-3626
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