All vulnerabilities
CVE-2015-7755

Juniper ScreenOS Improper Authentication Vulnerability

Juniper ScreenOSNetwork & edge
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 2 Oct 2025CISA KEV
Exploit odds (EPSS)61.1%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Federal deadline23 Oct 2025Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

  1. 19 Dec 2015, 11:00 UTCPublishedCVE List
  2. 20 Dec 2015Exploit code publicMetasploit
  3. 2 Oct 2025Added to CISA KEVCISA KEV

Public exploit code and templates 1

  • Auxiliary moduleJuniper SSH Backdoor Scanner 20 Dec 2015Metasploit

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

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

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 6