Is CVE-2026-35092 actively exploited?

CVE-2026-35092 has no public evidence of in-the-wild exploitation as of 2026-04-07.

What is the CVSS score for CVE-2026-35092?

CVE-2026-35092 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2026-35092?

Patch guidance is available from corosync security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-35092.

Fix CVE-2026-35092 - HIGH corosync corosync

Q: Which products are affected by CVE-2026-35092?

6 products: corosync corosync, redhat openshift, redhat enterprise linux, redhat enterprise linux, redhat enterprise linux, and 1 more.

Description

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol (UDP) packets. This can cause the service to crash, leading to a denial of service. This vulnerability specifically affects Corosync deployments configured to use totemudp/totemudpu mode.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-190 · Integer Overflow

Metadata

Primary Vendor: COROSYNC
Published: 4/1/2026
Last Modified: 4/7/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

corosync : corosyncredhat : openshiftredhat : enterprise_linuxredhat : enterprise_linuxredhat : enterprise_linuxredhat : enterprise_linux

Remediation Guidance

Executive Summary

View on NIST NVD