TI-2017-00122 Aliases CVE-2017-0129 GHSA-p3wq-v5cw-mp2f

Improper certificate validation in Microsoft Lync for Mac

MEDIUM 44CWE-295Published 2017-03-17 · Updated 2024-08-05

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Spoofing
Confidentiality · integrity · availability: None · High · None
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

Microsoft Lync for Mac 2011 fails to properly validate certificates, allowing remote attackers to alter server-client communications, aka "Microsoft Lync for Mac Certificate Validation Vulnerability."

Why it matters now

EPSS 0.07946 94th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microsoft	Lync for Mac	Lync for Mac 2011	—	No fix listed	CNA

Lync for Mac VendorMicrosoft Affected Lync for Mac 2011 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:microsoft:lync_for_mac:2011:::::::*	2011	Vulnerable	Microsoft

cpe:2.3:a:microsoft:lync_for_mac:2011:*:*:*:*:*:*:* Versions 2011 Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2017-0129
2026-10-03 Alias added: GHSA-p3wq-v5cw-mp2f

References

Patch 1

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0129

TI-2018-06154 Improper input validation in Microsoft Lync CVSS 3.0HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences