CVE-2015-7755 Juniper ScreenOS 6.2.0r15 through 6.2.0r18, 6.3.0r12 before 6.3.0r12b, 6.3.0r13 before 6.3.0r13b, 6.3.0r14 before 6.3.0r14b, 6.3.0r15 before 6.3.0r15b, 6.3.0r16 before 6.3.0r16b, 6.3.0r17 before 6.3.0...
CriticalCVSS 9.8
EPSS 61.4%
CISA KEV
added 2025-10-02 · due 2025-10-23
Exploited in the wild
PoC
- Published
- Updated
- Exploit status
- Exploited in the wild (confirmed)
Description
Juniper ScreenOS 6.2.0r15 through 6.2.0r18, 6.3.0r12 before 6.3.0r12b, 6.3.0r13 before 6.3.0r13b, 6.3.0r14 before 6.3.0r14b, 6.3.0r15 before 6.3.0r15b, 6.3.0r16 before 6.3.0r16b, 6.3.0r17 before 6.3.0r17b, 6.3.0r18 before 6.3.0r18b, 6.3.0r19 before 6.3.0r19b, and 6.3.0r20 before 6.3.0r21 allows remote attackers to obtain administrative access by entering an unspecified password during a (1) SSH or (2) TELNET session.
CISA Known Exploited Vulnerability
- Date added
- 2025-10-02
- Due date (FCEB)
- 2025-10-23
- Ransomware use
- Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| juniper screenos | = 6.3.0-r17 | No fix listed |
| juniper screenos | = 6.3.0-r18 | No fix listed |
| juniper screenos | = 6.3.0-r19 | No fix listed |
| juniper screenos | = 6.3.0-r20 | No fix listed |
References
- arstechnica.com third-party-advisory
- kb.juniper.net exploit vendor-advisory
- twitter.com broken-link
- www.forbes.com permissions-required
- VU#640184 third-party-advisory
- 79626 broken-link vdb-entry
- 1034489 broken-link vdb-entry
- www.wired.com third-party-advisory
- adamcaudill.com third-party-advisory
- forums.juniper.net vendor-advisory
- github.com third-party-advisory
- www.cisa.gov government-resource us-government-resource