Libtirpc: libtirpc: denial of service via unbounded memory allocation during portmapper response decoding
Historical advisory recorded 6 Nov 2026 02:36:20 UTC. Read the latest advisory.
cve-program · CVE-2026-85977
PublishedA 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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cve-program · CVE-2026-85977
PublishedLibtirpc: libtirpc: denial of service via unbounded memory allocation during portmapper response decoding
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.
- Source published
- 16 Oct 2026 18:20:43 UTC
- Source modified
- 6 Nov 2026 01:08:24 UTC
- Saved here
- 6 Nov 2026 02:36:20 UTC
- Source terms
- CVE Program Terms of Use
Original source record · Cite this exact observation · Complete original publisher JSON
Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.
CVSS 3.1 · 5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H