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Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch

🗓️ 11 Aug 2026 08:08:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 5 Views

Perl through 5.45.1 has heap OOB reads and writes in regex matching via undersized superlinear cache in S_regmatch.

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13 Aug 2026 07:09Current
5.2Medium risk
Vulners AI Score5.2
CVSS 3.15.7
EPSS0.00161
SSVC
5