CVE-2026-94640
Public on 2026-09-22
Modified on 2026-09-23
Description
A flaw was found in rpcbind. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a large number of unique requests. The rpcbind service records previously unseen RPC (Remote Procedure Call) statistics in unbounded in-memory lists, leading to persistent memory growth and increased CPU usage. This can degrade or exhaust service availability.
Severity
See what this means
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 2 - Core | bind | Not Affected | ||
| Amazon Linux 2023 | bind | Not Affected | ||
| Amazon Linux 2027 Preview | bind | Not Affected | ||
| Amazon Linux 2 - Core | rpcbind | Pending Fix | ||
| Amazon Linux 2023 | rpcbind | Pending Fix | ||
| Amazon Linux 2027 Preview | rpcbind | Pending Fix |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |