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Vulnerability record · CVE-2009-3626 · published 29 October 2009

CVE-2009-3626: Perl vulnerability

Perl · Perl

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.

5.0 CVSS 2.0 Medium EPSS 2.2% · top 18.1%
5.0CVSS 2.0 base score
2.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://perl5.git.perl.org/perl.git/commit/0abd0d78a73da1c4d13b1c700526b7e5d03b32d4 Patch
http://rt.perl.org/rt3/Public/Bug/Display.html?id=69973
http://rt.perl.org/rt3/Ticket/Attachment/617489/295383/
http://secunia.com/advisories/37144 Vendor Advisory
http://securitytracker.com/id?1023077
http://www.openwall.com/lists/oss-security/2009/10/23/8
http://www.osvdb.org/59283
http://www.securityfocus.com/bid/36812
http://www.vupen.com/english/advisories/2009/3023 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/53939
https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6225
http://perl5.git.perl.org/perl.git/commit/0abd0d78a73da1c4d13b1c700526b7e5d03b32d4 Patch
http://rt.perl.org/rt3/Public/Bug/Display.html?id=69973
http://rt.perl.org/rt3/Ticket/Attachment/617489/295383/
http://secunia.com/advisories/37144 Vendor Advisory
http://securitytracker.com/id?1023077
http://www.openwall.com/lists/oss-security/2009/10/23/8
http://www.osvdb.org/59283
http://www.securityfocus.com/bid/36812
http://www.vupen.com/english/advisories/2009/3023 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/53939
https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6225

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-8376Perl vulnerabilityPerl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have a heap buffer overflow when compiling regular express…EPSS 0.48%9.8CVE-2026-4176Perl vulnerabilityPerl versions from 5.9.4 before 5.40.4-RC1, from 5.41.0 before 5.42.2-RC1, from 5.43.0 before 5.43.9 contain a vulnerable version of Compress::Raw::Z…EPSS 0.81%9.8CVE-2022-48522Perl out-of-bounds write vulnerabilityIn Perl 5.34.0, function S_find_uninit_var in sv.c has a stack-based crash that can lead to remote code execution or local privilege escalation.EPSS 2.6%9.8CVE-2018-18311Perl integer overflow vulnerabilityPerl before 5.26.3 and 5.28.x before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.EPSS 12%9.8CVE-2018-18314Perl memory buffer overflow vulnerabilityPerl before 5.26.3 has a buffer overflow via a crafted regular expression that triggers invalid write operations.EPSS 6.1%9.8CVE-2018-18312Perl memory buffer overflow vulnerabilityPerl before 5.26.3 and 5.28.0 before 5.28.1 has a buffer overflow via a crafted regular expression that triggers invalid write operations.EPSS 13%9.8CVE-2018-6797Debian linux out-of-bounds write vulnerabilityAn issue was discovered in Perl 5.18 through 5.26. A crafted regular expression can cause a heap-based buffer overflow, with control over the bytes w…EPSS 6.5%9.8CVE-2018-6913Debian linux out-of-bounds write vulnerabilityHeap-based buffer overflow in the pack function in Perl before 5.26.2 allows context-dependent attackers to execute arbitrary code via a large item c…EPSS 11%

Source: NIST National Vulnerability Database (record CVE-2009-3626), CISA KEV, FIRST EPSS (scores of 2026-10-11). This page is refreshed as NVD updates the record.