CVE-2026-85977

Published: Oct 16, 2026Modified: Oct 19, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitability: 1.6 / Impact: 3.6

Source: secalert@redhat.com (Secondary)

Description

A flaw was found in libtirpc. A remote attacker can exploit this vulnerability by sending specially crafted PMAPPROC_DUMP replies to a client application that uses the pmap_getmaps() function against an attacker-controlled host. This unbounded decoding can lead to excessive memory and CPU allocation, causing the client process to experience a Denial of Service (DoS) due to resource exhaustion.

Related CWEs

CWE-1050

Excessive Platform Resource Consumption within a Loop

The product has a loop body or loop condition that contains a control element that directly or indirectly consumes platform resources, e.g. messaging, sessions, locks, or file descriptors.

References (4)

https://access.redhat.com/errata/RHSA-2026:80360

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2026-85977

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2478979

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2478979

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.