CVE-2026-32778: azl3 expat 2.6.4-4 on Azure Linux 3.0 (exact versions not specified); +6 more affected products

CVE-2026-32778 affects azl3 expat 2.6.4-4 on Azure Linux 3.0. CVSS 3.1 base score 2.9 (Microsoft Security Response Center). EPSS 0.00174 (percentile 0.06483), scored 21-Oct-2026. Fixed version: f31adfd584b7f6c50bbf4d22eb928538ffc9145a.

Affected technology

azl3 expat 2.6.4-4 on Azure Linux 3.0 · Exact affected versions not specified by the source
Microsoft

cbl2 expat 2.6.4-4 on CBL Mariner 2.0 · Exact affected versions not specified by the source
Microsoft

azl3 cmake 3.30.3-12 on Azure Linux 3.0 · Exact affected versions not specified by the source
Microsoft

cbl2 cmake 3.21.4-21 on CBL Mariner 2.0 · Exact affected versions not specified by the source
Microsoft

azl3 python3 3.12.9-9 on Azure Linux 3.0 · Exact affected versions not specified by the source
Microsoft

cbl2 expat 2.6.4-4 on CBL-Mariner 2.0 · Exact affected versions not specified by the source
Microsoft

azl3 expat 2.6.4-5 on Azure Linux 3.0 · Exact affected versions not specified by the source
Microsoft

Component: Not specified by the source

Attack conditions (Microsoft Security Response Center, CVSS 3.1): Local · No privileges required · No user interaction required

What an attacker can do

Microsoft Security Response Center’s CVSS 3.1 assessment rates confidentiality and integrity impact as none; availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 22-Oct-2026 20:43 UTC

Product: azl3 expat 2.6.4-4 on Azure Linux 3.0
CCR priority: 11.6 /100 (P5)
CVSS 3.1: 2.9 /10 · CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U · Microsoft Security Response Center
EPSS: 0.00174 · percentile 0.06483 · 2026-10-21
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-22 01:10:55.718059+00:00 UTC
Microsoft MSRC Security Update Guide (CVRF) · Source record · observed 2026-10-04 07:08:49.022374+00:00 UTC
OSV.dev · Source record · observed 2026-10-22 12:21:37.944032+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-32778.html