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Page generated: 09 Nov 2026, 02:36 UTC

CVE-2015-7755

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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.

CVSS 9.8 (CRITICAL) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.8/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 9.8: +1.47
Fresh EPSS: 61.14%: +0.31

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 9 documents and public datasets.

Hype components

Headline sample (25%)

0/100

Press, 30 days (60%)

0/100

Grounded branding (15%)

0/100

HYPE TOTAL0/100

Sources and documents

Recorded Future

Press · 06 Nov 2025, 08:00 · October 2025 CVE Landscape: 32 High-Impact Vulnerabilities Demand Immediate Attention - Recorded Future

The Hacker News

Press · 03 Oct 2025, 07:00 · CISA Flags Meteobridge CVE-2025-4008 Flaw as Actively Exploited in the Wild - The Hacker News

Cyber Daily

Press · 03 Oct 2025, 07:00 · Another 5 vulnerabilities added to CISA’s KEV catalogue - Cyber Daily

Communications of the ACM

Press · 01 Nov 2018, 07:00 · Where Did I Leave My Keys?: Lessons from the Juniper Dual EC Incident - Communications of the ACM

BleepingComputer

Press · 14 Feb 2018, 08:00 · DoubleDoor Botnet Chains Exploits to Bypass Firewalls - BleepingComputer

See all 9 source documents

Security Affairs

Press · 14 Feb 2018, 08:00 · DoubleDoor, a new IoT Botnet bypasses firewall using two backdoor exploits - Security Affairs

Krebs on Security

Press · 06 Dec 2016, 08:00 · Researchers Find Fresh Fodder for IoT Attack Cannons - Krebs on Security

SecurityWeek

Press · 22 Dec 2015, 08:00 · Attackers Attempt to Exploit Juniper Backdoor - SecurityWeek

SecurityWeek

Press · 21 Dec 2015, 08:00 · Juniper Firewall Backdoor Password Found in 6 Hours - SecurityWeek

Score evolution

● Hype ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.8 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

See 1 repos with metrics

Repository	Stars	Forks	Language	Updated
cinno/CVE-2015-7755-POC	2	1	Python	22 Dec 2015, 12:53

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence: Exploitation recorded
Priority basis: Recorded exploitation; CVSS 9.8; EPSS 61.1%
Attention, last 30 days: 0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential: network access, no prior privileges, no user interaction.
Observed activity: Exploitation recorded in CISA KEV.
Known scale: Not quantified.
Evidence confidence basis: Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:57:41.890959+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

Published

19 Dec 2015, 11:00

First press mention

21 Dec 2015, 08:00

Added to the CISA KEV catalog

02 Oct 2025, 00:00

Latest press mention

06 Nov 2025, 08:00

Score calculated

05 Nov 2026, 13:57

PoCs on GitHub

1 repositories