P4Verified

CVE-2026-33636: azl3 libpng 1.6.55-1 on Azure Linux 3.0 (exact versions not specified); +2 more affected products

CVE-2026-33636 affects azl3 libpng 1.6.55-1 on Azure Linux 3.0. CVSS 3.1 base score 7.6 (Microsoft Security Response Center). EPSS 0.00363 (percentile 0.28207), scored 11-Oct-2026. Fixed version: 17-next:01-Sep-2026. Fixed version: 15:01-Sep-2026. Fixed version: 16:01-Sep-2026. Fixed version: 16-qpr2:01-Sep-2026. Fixed version: 17:01-Sep-2026. Fixed version: 14:01-Sep-2026.

Affected technology

azl3 libpng 1.6.55-1 on Azure Linux 3.0 · Exact affected versions not specified by the source
Microsoft

cbl2 libpng 1.6.55-1 on CBL Mariner 2.0 · Exact affected versions not specified by the source
Microsoft

platform/external/libpng · Exact affected versions not specified by the source
Vendor not specified by the source

Component: Not specified by the source

Attack conditions (Microsoft Security Response Center, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

Microsoft Security Response Center’s CVSS 3.1 assessment rates confidentiality and integrity impact as low; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 13-Oct-2026 01:22 UTC

Product: azl3 libpng 1.6.55-1 on Azure Linux 3.0
CCR priority: 30.5 /100 (P4)
CVSS 3.1: 7.6 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H · Microsoft Security Response Center
EPSS: 0.00363 · percentile 0.28227 · 2026-10-12
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-13 01:52:16.607887+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 2026-10-12 16:59:58.811588+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-33636.html