vciy

CVE-2015-7755

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

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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…

CVE-2015-77553 of 4 sources documented this
76

rank 76 = 40 + 25 + 1 + 2 + 8

rank@v1 · act now

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.61139 · CISA KEV listed  ·  without this subject the record ranks 36

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 51

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-10-03  ·  without this subject the record ranks 75

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 74

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 68

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$3.05Mover the next 30 days, if this record is yours
Movement-$114,000on 2025-10-17, the last material move, 11 months before this reading
Basisassumeda published average, not your estate

$3.05M = $4.99M incident cost x 1 exposure x 0.61139 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.61139EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defenseno fix version held
Movementfallenreceipt
PLATEAU10Minimal movement since 2026-06-15, 95 days at 0.61, as of 2026-09-18. arc-rules@v1

Foresight · where to check next

SonicWall SonicOSConcurrentCVE-2023-28461Fortinet FortiOS,Fortinet FortiOSOracle Payments7755

This record is one instance of CWE-287, improper authentication. The index holds 4979 prior instances of this class, 49 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-287 Improper Authenticationreceipt
Published consequencesCWE-287: Integrity, Confidentiality, Availability, Access Control: Read Application Data, Gain Privileges or Assume Identity, Execute Unauthorized Code or Commands[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 18 Sep 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
CISA remediation statusoverdue since 2025-10-23receipt
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEV3575 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2025-10-02.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 2 public repositories2015-12-18receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2025-10-02receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.61139 · top 0.88% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymitrereceipt
Recorded changes51 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesJuniper screenosreceipt
Published rangesjuniper screenos 6.3.0receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

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. receipt

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-287
affected versions
juniper screenos 6.3.0
also scored by
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself arstechnica.com wired.com securitytracker.com kb.cert.org forums.juniper.net github.com +5 morereceipt

Dated events

2023-03-07EPSS moved 0.89 to 0.972025-10-02Added to CISA KEV2025-10-23CISA remediation due2026-06-15EPSS moved 0.86 to 0.61

Movement the material steps

4 Feb 20220.88933
7 Mar 20230.97087 · crossed 0.90 · scoring model v2023.03.01
17 Mar 20250.8916 · crossed 0.90 · scoring model v2025.03.14
3 Oct 20250.91206 · crossed 0.90
17 Oct 20250.88977 · crossed 0.90
15 Jun 20260.61139 · scoring model v2026.06.15
18 Sep 20260.61139
Show all 37 observations
4 Feb 20220.88933
7 Mar 20230.97087
27 Apr 20230.97055
31 May 20230.97020
8 Sep 20230.96967
11 Oct 20230.97054
25 Aug 20240.96924
25 Nov 20240.96564
17 Dec 20240.96371
17 Mar 20250.8916
28 Mar 20250.87208
29 Mar 20250.8916
30 Mar 20250.87208
15 Jun 20250.87347
23 Jun 20250.87208
2 Jul 20250.87094
16 Jul 20250.87236
21 Jul 20250.87094
2 Oct 20250.87725
3 Oct 20250.91206
11 Oct 20250.91257
17 Oct 20250.88977
18 Oct 20250.8889
19 Oct 20250.891
22 Oct 20250.89179
28 Oct 20250.89075
29 Oct 20250.88951
28 Dec 20250.88724
18 Jan 20260.85629
25 Jan 20260.85799
7 Feb 20260.85629
27 Mar 20260.84951
22 Apr 20260.85162
28 May 20260.85797
15 Jun 20260.61139
16 Jun 20260.614
18 Sep 20260.61139

37 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.61139Public PoC2015-12-18Published2015-12-19CISA KEV2025-10-02Index as of2026-09-18

Listed by CISA 3575 days after it published and the record had been public for 10 years, 8 months when this index was last written.

Public PoC 2015-12-18 receipt · Published 2015-12-19 receipt · CISA KEV 2025-10-02 receipt · Index as of 2026-09-18 derived

The pattern, elsewhere

This record is one instance of CWE-287, improper authentication. The index holds 4979 prior instances of this class, 49 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-53704 · SonicWall SonicOSmatches 8 of 8KEV listed · 2025receipt
CVE-2025-61882 · Oracle Concurrent Processingmatches 8 of 8KEV listed · 2025receipt
CVE-2023-28461matches 8 of 8KEV listed · 2023receipt
CVE-2022-40684 · Fortinet FortiOS, FortiProxy…matches 8 of 8KEV listed · 2022receipt
CVE-2020-12812 · Fortinet FortiOSmatches 8 of 8KEV listed · 2020receipt
CVE-2026-46817 · Oracle Paymentsmatches 8 of 8KEV listed · 2026receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

4979 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

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