P5Verified

CVE-2025-61672: synapse < 1.138.3, = 1.139.0

CVE-2025-61672. EPSS 0.00466 (percentile 0.38207), scored 2026-10-06.

Affected technology

synapse · < 1.138.3, = 1.139.0
element-hq

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 5.3/10) rates confidentiality impact as none; integrity and availability impact as low. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 2026-10-08 17:35:17.446459+00:00

CWE: CWE-1287
CCR priority: 0.1 /100 (P5)
EPSS: 0.00466 · percentile 0.38312 · 2026-10-08
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-08 17:36:22.845483+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-08 17:32:11.049884+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-61672.html