Risk Letters

Exploited vulnerability

CVE-2015-7755

TLP:CLEAR

Juniper ScreenOS Improper Authentication Vulnerability

Juniper ScreenOS contains an improper authentication vulnerability that could allow unauthorized remote administrative access to the device.

Facts

  • Vendor: Juniper
  • Product: ScreenOS
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 61.1 %
  • On CISA's Known Exploited Vulnerabilities list since: 2 October 2025
  • First known exploitation: 2 October 2025
  • CISA's deadline for US federal agencies: 23 October 2025
  • Weakness: CWE-287
  • First seen by Risk Letters: 2 October 2025

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD