# 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 6.3.0r17b, 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.

- Page: https://www.vulneraibility.com/cve/CVE-2015-7755
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2025-10-02; CISA due date 2025-10-23
- EPSS: 61.14%
- Unvetted proof-of-concept code on GitHub: 1 Metasploit module · 2 GitHub proofs of concept (first 2015-12-18)
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-10-02)
- Weakness: CWE-287
- Published: 2015-12-19

## Affected

- juniper:screenos

## References

- [other] http://arstechnica.com/security/2015/12/unauthorized-code-in-juniper-firewalls-decrypts-encrypted-vpn-traffic/
- [other] http://www.wired.com/2015/12/juniper-networks-hidden-backdoors-show-the-risk-of-government-backdoors/
- [other] http://www.securitytracker.com/id/1034489
- [advisory] http://www.kb.cert.org/vuls/id/640184
- [other] https://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554
- [other] https://github.com/hdm/juniper-cve-2015-7755
- [other] http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10713
- [other] http://twitter.com/cryptoron/statuses/677900647560253442
- [other] https://adamcaudill.com/2015/12/17/much-ado-about-juniper/
- [other] http://www.forbes.com/sites/thomasbrewster/2015/12/18/juniper-says-it-didnt-work-with-government-to-add-unauthorized-code-to-network-gear/
- [other] http://www.securityfocus.com/bid/79626
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-7755

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.