CVE-2026-73194: DBI versions before 1.652 for Perl allow a heap out-of-bounds write via an unvalidated numeric placeholder that sets the binder counter in preparse

criticalCVSS 9.1CVE-2026-73194

CSIRTS triage

vendor: DBI product: DBI Memory corruptionaffected: before 1.652

What: Heap out-of-bounds write via unvalidated numeric placeholder that sets the binder counter in preparse.
Who is affected: Perl applications using DBI versions before 1.652 are affected.
Urgency: Critical severity (CVSS 9.1) with memory corruption risk; immediate patching is essential.
Action: Update DBI to version 1.652 or later without delay.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: critical — CVSS 9.1
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-73194

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-731940.49% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-73194	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

criticalCVE-2026-73194: DBI versions before 1.652 for Perl allow a heap out-of-bounds write via an unvalidated numeric…nvd

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