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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...

Basic Information

CVE State
PUBLISHED
Reserved Date
October 08, 2015
Published Date
December 19, 2015
Last Updated
October 21, 2025
Vendor
n/a
Product
n/a
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.
Tags
cisa

CVSS Scores

CVSS v3.1

9.8 - CRITICAL

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

CVSS v2.0

10.0

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

SSVC Information

Exploitation
active
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2026-06-01 13:30:37 UTC) Source
Proof of Concept Available
Yes (added 2016-01-09 22:49:07 UTC) Source

References

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

Known Exploited Vulnerability Information

Source Added Date
CVE 2026-06-01 10:41:37 UTC

Potential Proof of Concepts

Warning: These PoCs have not been tested and could contain malware. Use at your own risk.

cinno/CVE-2015-7755-POC

Type: github • Created: 2016-01-09 22:49:07 UTC • Stars: 2

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Proof of Concept Exploit Available

  • Added to KEVIntel