VULNERABILITY INTELLIGENCE
CVE-2026-78002
CVSS score7.5 HIGH
EPSS probability1.06%
CISA KEVNot currently listed
Published2026-08-27
Last modified2026-10-30
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript `replace()` function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.
Weakness classification
- secalert@redhat.com: CWE-131