What is CVE-2015-7754?

CVE-2015-7754 is a high-severity vulnerability in Juniper Screenos, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2016-01-08.

How severe is CVE-2015-7754?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2015-7754 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Juniper Screenos

CVE-2015-7754

Juniper ScreenOS before 6.3.0r21, when ssh-pka is configured and enabled, allows remote attackers to cause a denial of service (system crash) or execute arbitrary code via crafted SSH negotiation.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2016-01-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.039 (89.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000

Affected products

Juniper Screenos

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

www.securityfocus.com/bid/79627 (vdb-entry)
www.securitytracker.com/id/1034490 (vdb-entry)
kb.juniper.net/InfoCenter/index (Vendor Advisory)

Frequently asked questions

What is CVE-2015-7754?: CVE-2015-7754 is a high-severity vulnerability in Juniper Screenos, classified under Improper Input Validation. CVSS score: 8.1/10. Published 2016-01-08.
How severe is CVE-2015-7754?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2015-7754 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.