DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment

Date Jul 14, 2026
Type Patch Tuesday
Signal Critical vendor advisory
Vendor / Product Microsoft ยท Mariner
CVE CVE-2026-14740
Critical vendor advisory CVE-2026-14740

Summary

DBI versions before 1.650 for Perl read one byte out-of-bounds in preparse when deleting an initial SQL comment Published in July 2026 Security Updates.

Why it matters

Microsoft published this item through its Security Update Guide, making it part of Patch Tuesday triage for affected Windows, cloud, or application estates. EPSS percentile: 33%.

Operator check

Review the Microsoft Security Update Guide entry for CVE-2026-14740. Confirm whether Mariner is deployed, then apply the current security update or documented mitigation. CVSS score: 9.1. EPSS probability: 0.4%; percentile: 33%.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.