A Use of a Broken or Risky Cryptographic Algorithm vulnerability in the TLS/SSL server of Juniper Networks Junos Space allows the use of static key ciphers (ssl-static-key-ciphers), reducing the confidentiality of on-path traffic communicated across the connection. These ciphers also do not support Perfect Forward Secrecy (PFS), affecting the long-term confidentiality of encrypted communications.This issue affects all versions of Junos Space before 24.1R5.
History

Thu, 15 Jan 2026 22:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Jan 2026 20:30:00 +0000

Type Values Removed Values Added
Description A Use of a Broken or Risky Cryptographic Algorithm vulnerability in the TLS/SSL server of Juniper Networks Junos Space allows the use of static key ciphers (ssl-static-key-ciphers), reducing the confidentiality of on-path traffic communicated across the connection. These ciphers also do not support Perfect Forward Secrecy (PFS), affecting the long-term confidentiality of encrypted communications.This issue affects all versions of Junos Space before 24.1R5.
Title Junos Space: TLS/SSL server supports use of static key ciphers (ssl-static-key-ciphers)
Weaknesses CWE-327
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N/AU:Y/RE:M/U:Green'}


cve-icon MITRE

Status: PUBLISHED

Assigner: juniper

Published:

Updated: 2026-01-15T21:12:31.198Z

Reserved: 2026-01-05T17:32:48.710Z

Link: CVE-2026-21907

cve-icon Vulnrichment

Updated: 2026-01-15T21:12:29.019Z

cve-icon NVD

Status : Received

Published: 2026-01-15T21:16:06.357

Modified: 2026-01-15T21:16:06.357

Link: CVE-2026-21907

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.