A flaw was found in rpcbind. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a large… (CVE-2026-94640)
A vulnerability in rpcbind allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending many unique RPC requests. The service records these requests in unbounded in-memory lists, causing persistent memory growth and increased CPU usage, which can degrade or exhaust service availability.
AI Analysis
Technical Summary
The rpcbind service has a flaw where it records previously unseen RPC statistics in unbounded in-memory lists. An attacker can exploit this by sending a large number of unique RPC requests remotely without authentication, leading to persistent memory growth and increased CPU usage. This results in a Denial of Service condition by degrading or exhausting the availability of the rpcbind service.
Potential Impact
The vulnerability allows remote unauthenticated attackers to cause a Denial of Service by exhausting system resources such as memory and CPU on the rpcbind service, potentially making the service unavailable.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
A flaw was found in rpcbind. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a large… (CVE-2026-94640)
Description
A vulnerability in rpcbind allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending many unique RPC requests. The service records these requests in unbounded in-memory lists, causing persistent memory growth and increased CPU usage, which can degrade or exhaust service availability.
CVSS v3.1
Score 7.5high
Affected software
pkg:deb/ubuntu/rpcbind?arch=source&distro=esm-infra-legacy/trustypkg:deb/ubuntu/rpcbind?arch=source&distro=esm-infra/xenialpkg:deb/ubuntu/rpcbind?arch=source&distro=bionicpkg:deb/ubuntu/rpcbind?arch=source&distro=focalpkg:deb/ubuntu/rpcbind?arch=source&distro=jammypkg:deb/ubuntu/rpcbind?arch=source&distro=noblepkg:deb/ubuntu/rpcbind?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The rpcbind service has a flaw where it records previously unseen RPC statistics in unbounded in-memory lists. An attacker can exploit this by sending a large number of unique RPC requests remotely without authentication, leading to persistent memory growth and increased CPU usage. This results in a Denial of Service condition by degrading or exhausting the availability of the rpcbind service.
Potential Impact
The vulnerability allows remote unauthenticated attackers to cause a Denial of Service by exhausting system resources such as memory and CPU on the rpcbind service, potentially making the service unavailable.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-94640
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:Pro:14.04:LTS","Ubuntu:Pro:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.04:LTS"]
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab4be23f7a7c54106eee989
Added to database: 09/24/2026, 06:07:31 UTC
Last enriched: 09/24/2026, 06:20:20 UTC
Last updated: 09/25/2026, 03:47:33 UTC
Views: 3
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