OpenSSL TLS 1.3 server may choose unexpected key agreement group
CVE-2026-2673 is a vulnerability related to OpenSSL TLS 1. 3 servers potentially selecting an unexpected key agreement group during the TLS handshake. The vulnerability affects certain Microsoft products including Azure Linux 3. 0 and nodejs24. No CVSS score or detailed technical exploitation information is provided. There are no known exploits in the wild and no patch or remediation details have been disclosed. The vulnerability is categorized under CWE-757, which relates to the use of potentially dangerous or unexpected values.
AI Analysis
Technical Summary
This vulnerability involves OpenSSL TLS 1.3 servers possibly choosing an unexpected key agreement group, which could affect the security of the TLS handshake process. It impacts Microsoft products such as Azure Linux 3.0 and nodejs24. The Microsoft Security Response Center has published an advisory identified as msrc_CVE-2026-2673, but no patch or mitigation details are currently available. The vulnerability is classified under CWE-757, indicating issues with the use of unexpected values in security-critical operations.
Potential Impact
The impact is not explicitly detailed in the available information. The unexpected selection of a key agreement group in TLS 1.3 could potentially weaken the cryptographic security of the TLS handshake, but no confirmed exploitation or specific impact scenarios are provided. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is currently available. Organizations using affected products should monitor vendor communications for updates.
OpenSSL TLS 1.3 server may choose unexpected key agreement group
Description
CVE-2026-2673 is a vulnerability related to OpenSSL TLS 1. 3 servers potentially selecting an unexpected key agreement group during the TLS handshake. The vulnerability affects certain Microsoft products including Azure Linux 3. 0 and nodejs24. No CVSS score or detailed technical exploitation information is provided. There are no known exploits in the wild and no patch or remediation details have been disclosed. The vulnerability is categorized under CWE-757, which relates to the use of potentially dangerous or unexpected values.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves OpenSSL TLS 1.3 servers possibly choosing an unexpected key agreement group, which could affect the security of the TLS handshake process. It impacts Microsoft products such as Azure Linux 3.0 and nodejs24. The Microsoft Security Response Center has published an advisory identified as msrc_CVE-2026-2673, but no patch or mitigation details are currently available. The vulnerability is classified under CWE-757, indicating issues with the use of unexpected values in security-critical operations.
Potential Impact
The impact is not explicitly detailed in the available information. The unexpected selection of a key agreement group in TLS 1.3 could potentially weaken the cryptographic security of the TLS handshake, but no confirmed exploitation or specific impact scenarios are provided. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is currently available. Organizations using affected products should monitor vendor communications for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-2673
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1ca153e29bf47b505e08f2
Added to database: 5/31/2026, 9:00:03 PM
Last enriched: 5/31/2026, 9:04:21 PM
Last updated: 6/2/2026, 6:22:10 AM
Views: 6
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