PCRE2 before 10.48 has a pcre2_match out-of-bounds read after a JIT fallback when an attacker can provide invalid UTF data.

• azl3 pcre2 10.42-3 on Azure Linux 3.0

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

1. Sep 29, 2026 at 11:40 AM UTC
   • CVSS changed from 3.7 to 2.9.
   • Removed affected products: azl3 nmap 7.95-5 on Azure Linux 3.0.
   • The vendor changed its remediation guidance.
2. Sep 27, 2026 at 11:11 PM UTC
   • CVSS changed from 2.9 to 3.7.
   • Added affected products: azl3 nmap 7.95-5 on Azure Linux 3.0.
   • The vendor changed its remediation guidance.
3. Sep 17, 2026 at 10:05 AM UTC
   • Added fixed versions: 10.48-1.

1. Sep 12, 2026 at 1:03 AM UTC
   Published by Microsoft Security Response Center

   The publication date reported by the vendor.

2. Sep 13, 2026 at 8:45 AM UTC
   Added to SecurityAlert

   We collected the advisory from the official source.

3. Sep 29, 2026 at 1:46 AM UTC
   Updated by Microsoft Security Response Center

   The vendor changed the advisory after it was first published.

4. Oct 28, 2026 at 3:45 AM UTC
   Confirmed at the source

   Our collector saw this advisory during a later source check.