Loading vulnerability…
CVE-2015-7756 is a cryptographic backdoor in Juniper ScreenOS used by NetScreen firewalls. Unauthorized code in the VPN encryption implementation enables a passive remote eavesdropper to recover plaintext from captured VPN ciphertext through an unspecified decryption attack. Affected releases include ScreenOS 6.2.0r15 through 6.2.0r18 and unpatched 6.3.0r12 through 6.3.0r20; corrected “b”-suffix builds of 6.3.0r12 through 6.3.0r19 are excluded. This vulnerability is distinct from the ScreenOS administrative authentication bypass tracked as CVE-2015-7755.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Juniper ScreenOS vulnerability permitting decryption of VPN traffic, mentioned as historical context.
A backdoor vulnerability affecting Juniper firewalls. The study identified exploits targeting it in IoT malware binaries labeled gafgyt and mirai.
A vulnerability associated with unauthorized code in Juniper ScreenOS permits decryption of VPN traffic. The article identifies affected releases and available security updates but does not report exploitation of this specific flaw.
A Juniper ScreenOS VPN-related backdoor/weakness enabling passive decryption of VPN traffic (as described in the content), distinct from the SSH/Telnet authentication-bypass backdoor.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.