What is CVE-2013-7491?

CVE-2013-7491 is a medium-severity vulnerability in Perl Dbi, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2020-09-11.

How severe is CVE-2013-7491?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2013-7491 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Perl Dbi

CVE-2013-7491

An issue was discovered in the DBI module before 1.628 for Perl. Stack corruption occurs when a user-defined function requires a non-trivial amount of memory and the Perl stack gets reallocated.

Vulnerability class: Buffer Overflow

Published 2020-09-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.027 (85.1th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Perl Dbi

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

404notf0und/CVE-Flow

References

rt.cpan.org/Public/Bug/Display.html (Third Party Advisory)
github.com/perl5-dbi/dbi/commit/401f1221311c71f760e21c98772f0f7e3cbead1d (Patch, Third Party Advisory)
metacpan.org/pod/distribution/DBI/Changes (Release Notes)

Frequently asked questions

What is CVE-2013-7491?: CVE-2013-7491 is a medium-severity vulnerability in Perl Dbi, classified under Out-of-bounds Write. CVSS score: 5.3/10. Published 2020-09-11.
How severe is CVE-2013-7491?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2013-7491 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.