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 2025-10-23
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
References
arstechnica.com/...firewalls-decrypts-encrypted-vpn-traffic/
www.wired.com/...oors-show-the-risk-of-government-backdoors/
www.securitytracker.com/id/1034489 (1034489)
www.kb.cert.org/vuls/id/640184 (VU#640184)
forums.juniper.net/...nnouncement-about-ScreenOS/ba-p/285554
github.com/hdm/juniper-cve-2015-7755
kb.juniper.net/InfoCenter/index?page=content&id=JSA10713
twitter.com/cryptoron/statuses/677900647560253442
adamcaudill.com/2015/12/17/much-ado-about-juniper/
www.forbes.com/...-to-add-unauthorized-code-to-network-gear/
www.securityfocus.com/bid/79626 (79626)
www.cisa.gov/...nerabilities-catalog?field_cve=CVE-2015-7755
arstechnica.com/...firewalls-decrypts-encrypted-vpn-traffic/
www.wired.com/...oors-show-the-risk-of-government-backdoors/
www.securitytracker.com/id/1034489 (1034489)
www.kb.cert.org/vuls/id/640184 (VU#640184)
forums.juniper.net/...nnouncement-about-ScreenOS/ba-p/285554
github.com/hdm/juniper-cve-2015-7755
kb.juniper.net/InfoCenter/index?page=content&id=JSA10713
twitter.com/cryptoron/statuses/677900647560253442
adamcaudill.com/2015/12/17/much-ado-about-juniper/
www.forbes.com/...-to-add-unauthorized-code-to-network-gear/
www.securityfocus.com/bid/79626 (79626)