CVE-2012-5195

7.5 HIGH 5% exploit odds Fix listed

What it is

Heap-based buffer overflow in the Perl_repeatcpy function in util.c in Perl 5.12.x before 5.12.5, 5.14.x before 5.14.3, and 5.15.x before 15.15.5 allows context-dependent attackers to cause a denial of service (memory consumption and crash) or possibly execute arbitrary code via the 'x' string repeat operator.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 4.9% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2012-12-18 00:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:46 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 4.9% in the next 30 days (EPSS).
Severity: 7.5 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2012-12-18 00:55 UTC
Last modified: 2026-06-16 23:46 UTC
Exploit probability: 4.9% · EPSS, next 30 days
Weakness: CWE-119 · Buffer errors
Record status: Modified

Affected

Perl 5.12.0
Perl 5.12.1
Perl 5.12.2
Perl 5.12.3
Perl 5.12.4
Perl 5.14.0
Perl 5.14.1
Perl 5.14.2

Attack profile CVSS 2.0 · 7.5

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

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

Is it in your code?

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Fix and advisories

References

NVD record · CVE.org record