CVE-2020-12723
regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.
CVSS
7.5
High
EPSS
6.0%
p93
KEV
—
Exploit Today
28
0-100
Published: Jun 5, 2020 · Last modified: Oct 14, 2026 · CWE-120
6.0%EPSS · 30 days6.0%
2026-10-052026-11-01
regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.
- lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00044.html
- github.comhttps://github.com/Perl/perl5/blob/blead/pod/perl5303delta.pod
- github.comhttps://github.com/Perl/perl5/compare/v5.30.2...v5.30.3
- github.comhttps://github.com/Perl/perl5/issues/16947
- github.comhttps://github.com/Perl/perl5/issues/17743
- github.comhttps://github.com/perl/perl5/commit/66bbb51b93253a3f87d11c2695cfb7bdb782184a
- lists.fedoraproject.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IN3TTBO5KSGWE5IRIKDJ5JSQRH7ANNXE/
- security.gentoo.orghttps://security.gentoo.org/glsa/202006-03
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20200611-0001/
- www.oracle.comhttps://www.oracle.com//security-alerts/cpujul2021.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuApr2021.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2021.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2022.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2020.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2021.html
- lists.opensuse.orghttp://lists.opensuse.org/opensuse-security-announce/2020-06/msg00044.html
- github.comhttps://github.com/Perl/perl5/blob/blead/pod/perl5303delta.pod
- github.comhttps://github.com/Perl/perl5/compare/v5.30.2...v5.30.3
- github.comhttps://github.com/Perl/perl5/issues/16947
CVECVSSEPSSKEVRExploitTitleMod.
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