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CVE-2026-14739

Perl Dbi buffer overflow

9.8 CRITICALEPSS 0.41%
  1. Published7 Jul 2026

Description

DBI versions before 1.650 for Perl have a heap overflow when preparsing SQL statements with an extreme number of placeholders. The fix for CVE-2026-10879 did not allocate enough memory to handle approximately 1.2-million placeholders. DBI version 1.650 sets a hard limit of 99,999 placeholders.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Perl Dbi< 1.650

Remediation

Fixed in
Perl Dbi≥ 1.650

References

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Frequently asked

Is CVE-2026-14739 being actively exploited?

CVE-2026-14739 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.41%.

How severe is CVE-2026-14739?

CVE-2026-14739 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.41% probability of exploitation.

Which products are affected by CVE-2026-14739?

Affected products include Perl Dbi.

How do I fix CVE-2026-14739?

Upgrade affected software to a fixed version, for example Perl Dbi 1.650 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.