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CVE-2026-85977

Libtirpc: libtirpc: denial of service via unbounded memory allocation during portmapper response decoding

CVSS 3.1 5.3 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-85977

Published

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.

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Affected versions, risk and source history

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CVE-2026-85977 · CVE overview and exploitation status

cve-program · CVE-2026-85977

Related changes

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