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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://arstechnica.com/security/2015/12/unauthorized-code-in-juniper-firewalls-decrypts-encrypted-vpn-traffic/Third Party Advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10713Exploit, Vendor Advisory
http://twitter.com/cryptoron/statuses/677900647560253442Broken Link
http://www.forbes.com/sites/thomasbrewster/2015/12/18/juniper-says-it-didnt-work-with-government-to-add-unauthorized-code-to-network-gear/Permissions Required
http://www.kb.cert.org/vuls/id/640184Third Party Advisory
http://www.securityfocus.com/bid/79626Broken Link
http://www.securitytracker.com/id/1034489Broken Link
http://www.wired.com/2015/12/juniper-networks-hidden-backdoors-show-the-risk-of-government-backdoors/Third Party Advisory
https://adamcaudill.com/2015/12/17/much-ado-about-juniper/Third Party Advisory
https://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554Vendor Advisory
https://github.com/hdm/juniper-cve-2015-7755Third Party Advisory
http://arstechnica.com/security/2015/12/unauthorized-code-in-juniper-firewalls-decrypts-encrypted-vpn-traffic/Third Party Advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10713Exploit, Vendor Advisory
http://twitter.com/cryptoron/statuses/677900647560253442Broken Link
http://www.forbes.com/sites/thomasbrewster/2015/12/18/juniper-says-it-didnt-work-with-government-to-add-unauthorized-code-to-network-gear/Permissions Required
http://www.kb.cert.org/vuls/id/640184Third Party Advisory
http://www.securityfocus.com/bid/79626Broken Link
http://www.securitytracker.com/id/1034489Broken Link
http://www.wired.com/2015/12/juniper-networks-hidden-backdoors-show-the-risk-of-government-backdoors/Third Party Advisory
https://adamcaudill.com/2015/12/17/much-ado-about-juniper/Third Party Advisory
https://forums.juniper.net/t5/Security-Incident-Response/Important-Announcement-about-ScreenOS/ba-p/285554Vendor Advisory
https://github.com/hdm/juniper-cve-2015-7755Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-7755US Government Resource

Timeline

Published: Dec 19, 2015
Last modified: Jun 17, 2026
Added to CISA KEV: Oct 2, 2025
NVD status: Analyzed