CVE-2026-35092

highpriority · track · 0EPSS 0.010 · 62 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.99% (62nd) EPSS

CVSS 7.5 · high

Is it mine?

59 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · secalert@redhat.com USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-190USCWE-190US

affected products (59)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
IBM DB2all versionscert_bundDEcpe:/a:ibm:db2:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Red Hat Enterprise Linux <10all versionscert_bundDE
Red Hat Enterprise Linux< 10cert_bundDE
Red Hat Red Hat Enterprise Linux 10< 0:3.1.10-1.el10_2.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 10< 0:3.1.9-2.el10_1.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support< 0:3.1.9-1.el10_0.2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support< 0:2.4.5-7.el7_9.3enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8< 0:3.1.8-1.el8_10.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support< 0:3.1.0-3.el8_4.2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On< 0:3.1.0-3.el8_4.2enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support< 0:3.1.5-2.el8_6.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service< 0:3.1.5-2.el8_6.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions< 0:3.1.5-2.el8_6.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service< 0:3.1.7-1.el8_8.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions< 0:3.1.7-1.el8_8.1enisa_euvdEU
Red Hat Red Hat Enterprise Linux 9< 0:3.1.10-1.el9_8.1enisa_euvdEU

showing 20 of 59

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-1358Red Hat Enterprise Linux (corosync): Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2026-05-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux (corosync) ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2026-04-01modified 2026-10-26

references (38)

External citations — patches, advisories, analysis.

scry

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