vciy

CVE-2017-17090

INDEX BUILT · 2026-09-20

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An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk…

CVE-2017-170903 of 4 sources documented this
45

rank 45 = 20 + 19 + 0 + 6 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.81511  ·  without this subject the record ranks 25

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, from NVD  ·  without this subject the record ranks 26

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 45

How much of the world it touches

NVD CPE configurations

5 products in the CPE ranges  ·  without this subject the record ranks 39

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 45

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.49Mover the next 30 days, if this record is yours
Movement-$290,000on 2026-01-17, the last material move, 7 months before this reading
Basisassumeda published average, not your estate

$2.49M = $4.99M incident cost x 0.6121449559255632 exposure x 0.81511 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

0.81511EPSSNOT IN KEVas of 2026-09-20
Severity7.5 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-03-17, 538 days at 0.82, as of 2026-09-06. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete availability lossreceipt
Scored fromCVSS v3.0 · NVD's vectorreceipt
Weakness classCWE-459 Incomplete Cleanupreceipt
Published consequencesCWE-459: Other, Confidentiality, Integrity: Other, Read Application Data, Modify Application Data, DoS: Resource Consumption (Other)[email protected]

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 6 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.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD7.5 HIGHreceipt
Exploit probability0.81511 · top 0.38% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymitrereceipt
Recorded changes26 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesDigium asterisk; Digium certified asteriskreceipt
Published rangesdigium certified asterisk <= 13.13; digium certified asterisk 13.13; digium asterisk <= 13.8.2; digium asterisk <= 14.7.2receipt
Show all 5 published ranges
digium certified asterisk <= 13.13
digium certified asterisk 13.13
digium asterisk <= 13.8.2
digium asterisk <= 14.7.2
digium asterisk <= 15.1.2

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

An issue was discovered in chan_skinny.c in Asterisk Open Source 13.18.2 and older, 14.7.2 and older, and 15.1.2 and older, and Certified Asterisk 13.13-cert7 and older. If the chan_skinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use excessive amounts of virtual memory, eventually causing asterisk to stop processing requests of any kind. receipt

NVD's analysis a second authority

severity
7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
weakness
CWE-459
affected versions
digium certified asterisk <= 13.13; digium certified asterisk 13.13; digium asterisk <= 13.8.2; and 2 more, listed in full below

check it yourself securitytracker.com exploit-db.com securityfocus.com issues.asterisk.org lists.debian.org debian.org +1 morereceipt

Dated events

2022-02-04EPSS moved 0.07 to 0.152023-03-07EPSS moved 0.15 to 0.842026-01-17EPSS moved 0.90 to 0.81

Movement the material steps

14 Apr 20210.07038
4 Feb 20220.15439 · crossed 0.10
7 Mar 20230.84015 · crossed 0.50 · scoring model v2023.03.01
8 May 20230.72029
17 Dec 20240.46313 · crossed 0.50
17 Mar 20250.91033 · crossed 0.50 and 0.90 · scoring model v2025.03.14
30 Jul 20250.89295 · crossed 0.90
1 Oct 20250.9008 · crossed 0.90
15 Oct 20250.89199 · crossed 0.90
16 Jan 20260.9008 · crossed 0.90
17 Jan 20260.80582 · crossed 0.90
15 Jun 20260.81511 · scoring model v2026.06.15
6 Sep 20260.81511
Show all 26 observations
14 Apr 20210.07038
4 Feb 20220.15439
7 Mar 20230.84015
24 Apr 20230.85414
8 May 20230.72029
3 Jun 20230.69318
17 Dec 20240.46313
17 Mar 20250.91033
19 Mar 20250.9036
29 Mar 20250.91298
30 Mar 20250.9036
30 Jul 20250.89295
20 Aug 20250.88942
1 Oct 20250.9008
15 Oct 20250.89199
27 Oct 20250.87835
28 Oct 20250.89199
27 Dec 20250.87835
28 Dec 20250.89199
16 Jan 20260.9008
17 Jan 20260.80582
15 Jun 20260.81511
23 Aug 20260.78069
30 Aug 20260.81511
5 Sep 20260.78069
6 Sep 20260.81511

26 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 0.81511Published2017-12-02Index as of2026-09-06

The record had been public for 8 years, 9 months when this index was last written.

Published 2017-12-02 receipt · Index as of 2026-09-06 derived

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