CVE-2026-35091HIGH 8.2EPSS p54.0%
CVE-2026-35091CVE-2026-35091
Description
A flaw was found in Corosync. A remote unauthenticated attacker can exploit a wrong return value vulnerability in the Corosync membership commit token sanity check by sending a specially crafted User Datagram Protocol (UDP) packet. This can lead to an out-of-bounds read, causing a denial of service (DoS) and potentially disclosing limited memory contents
Scoring
| CVSS 3.1 | 8.2 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
| EPSS | 0.87% probability of exploitation · percentile 54.0% · 2026-06-18T12:00:27Z |
| Published | 2026-04-01 |
| Last modified | 2026-05-26 |
Underlying weaknesses· 1
References
- https://access.redhat.com/errata/RHSA-2026:13644
- https://access.redhat.com/errata/RHSA-2026:13657
- https://access.redhat.com/errata/RHSA-2026:13673
- https://access.redhat.com/errata/RHSA-2026:14205
- https://access.redhat.com/errata/RHSA-2026:14210
- https://access.redhat.com/errata/RHSA-2026:14211
- https://access.redhat.com/errata/RHSA-2026:14212
- https://access.redhat.com/errata/RHSA-2026:14213
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Incorrect Check of Function Return Valuecwe-253 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.