SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-1084

corosync before version 2.4.4 is vulnerable to an integer overflow in exec/totemcrypto.c.

HIGH 7.5EPSS 3.11%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (3.11%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

corosync before version 2.4.4 is vulnerable to an integer overflow in exec/totemcrypto.c.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
3.11% probability · 88th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-190
Affected
corosync/corosync · debian/debian linux · redhat/enterprise linux server · canonical/ubuntu linux
Source
secalert@redhat.com
EPSS trend
0%3%5%27 October 2026: 3.11%27 October 202627 October 2026

EPSS 3.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.