Svxlink: [GHSA-38fq-mrrg-8rmr: RtlTcp: malformed greeting causes daemon exit] (CVE-2026-73143)
Description
A vulnerability in Svxlink's RtlTcp component causes the daemon to exit when it receives a malformed greeting. This issue affects multiple specific versions of Svxlink. The severity is assessed as medium. No CVSS score or detailed technical impact is provided. There is no information about available patches or exploits in the wild.
Affected software
pkg:deb/ubuntu/svxlink?arch=source&distro=xenialpkg:deb/ubuntu/svxlink?arch=source&distro=bionicpkg:deb/ubuntu/svxlink?arch=source&distro=focalpkg:deb/ubuntu/svxlink?arch=source&distro=jammypkg:deb/ubuntu/svxlink?arch=source&distro=noblepkg:deb/ubuntu/svxlink?arch=source&distro=stonkingpkg:deb/ubuntu/svxlink?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
CVE-2026-73143 describes a vulnerability in the Svxlink software, specifically in the RtlTcp component, where a malformed greeting message can cause the daemon process to exit unexpectedly. This could lead to a denial of service condition by terminating the service. The affected versions are explicitly listed and include various builds from versions 14.08.1 through 26.05.1. No CVSS score or detailed vendor advisory information is available to clarify the extent of impact or remediation status.
Potential Impact
The vulnerability causes the Svxlink daemon to exit upon receiving a malformed greeting via RtlTcp, potentially resulting in a denial of service. There is no evidence of known exploits in the wild or additional impacts such as code execution or data compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or workaround information is provided in the available data.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-73143
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.10","Ubuntu:26.04:LTS"]
Threat ID: 6ad3f58e2cdf04f6566621d4
Added to database: 10/17/2026, 22:24:14 UTC
Last enriched: 10/17/2026, 23:48:51 UTC
Last updated: 10/17/2026, 23:48:51 UTC
Views: 4
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