CVE-2017-17090

HIGHNVD 7.58.9▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.9 because EPSS predicts 82% probability of exploitation within the next 30 days (99th percentile of EPSS-scored CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Weaponized
8.9EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 82%
  • Public exploit code is available (Exploit-DB (verified), epss top5pct, epss high, public exploit)
CISA-KEV: Not listedEPSS PROB: 82%CVSS: 7.5Exploit: Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed services: Not assessed

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
8.9HIGHhigh confidence
EG Risk
77
EG Risk 77/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity89% × 45%
Exploitation82% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
82%
EPSS %ILE
99th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (EG-KEV: weaponized) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

December 2, 2017

Last Modified

June 17, 2026

References (14)

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
asterisk—
  • every version up to 1:13.18.3~dfsg-1: fixed in 1:13.18.3~dfsg-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
asterisk0.1.11-3 ... 1:13.9.1~dfsg-2 (217 versions)
  • every version up to 1:13.18.3~dfsg-1: fixed in 1:13.18.3~dfsg-1
—
Debian:7(1)
PackageVulnerable rangeFix by version rangeDependents
asterisk1:1.8.13.1~dfsg-3 ... 1:1.8.13.1~dfsg1-3+deb7u7 (8 versions)
  • every version up to 1:1.8.13.1~dfsg1-3+deb7u8: fixed in 1:1.8.13.1~dfsg1-3+deb7u8
—
Debian:8(1)
PackageVulnerable rangeFix by version rangeDependents
asterisk1:11.13.1~dfsg-2, 1:11.13.1~dfsg-2+deb8u1, 1:11.13.1~dfsg-2+deb8u2, 1:11.13.1~dfsg-2+deb8u3, 1:11.13.1~dfsg-2+deb8u4
  • every version up to 1:11.13.1~dfsg-2+deb8u5: fixed in 1:11.13.1~dfsg-2+deb8u5
—
Debian:9(1)
PackageVulnerable rangeFix by version rangeDependents
asterisk1:13.14.1~dfsg-2, 1:13.14.1~dfsg-2+deb9u1, 1:13.14.1~dfsg-2+deb9u2
  • every version up to 1:13.14.1~dfsg-2+deb9u3: fixed in 1:13.14.1~dfsg-2+deb9u3
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 2× in last 7d / 10× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-30 14:58 UTCEPSS rescore
  2. 2026-09-30 09:30 UTCEG score recompute
  3. 2026-09-27 13:40 UTCEPSS rescore
  4. 2026-09-26 15:53 UTCEPSS rescore
  5. 2026-09-24 13:59 UTCEPSS rescore
  6. 2026-09-19 15:36 UTCEPSS rescore
  7. 2026-09-18 03:06 UTCOSV refresh
  8. 2026-09-17 19:22 UTCEPSS rescore
  9. 2026-09-13 16:42 UTCEPSS rescore
  10. 2026-09-10 09:26 UTCEPSS rescore
  11. 2026-09-04 13:56 UTCEPSS rescore
  12. 2026-08-30 19:13 UTCEPSS rescore
  13. 2026-08-30 03:48 UTCOSV refresh
  14. 2026-08-28 21:36 UTCEPSS rescore
  15. 2026-08-27 14:20 UTCEPSS rescore
  16. 2026-08-26 14:41 UTCEPSS rescore
  17. 2026-08-24 14:10 UTCEPSS rescore
  18. 2026-08-21 23:44 UTCEPSS rescore
  19. 2026-08-19 16:59 UTCEPSS rescore
  20. 2026-08-16 02:10 UTCEPSS rescore
  21. 2026-08-15 01:26 UTCEPSS rescore
  22. 2026-08-13 16:21 UTCOSV refresh
  23. 2026-08-08 16:32 UTCEPSS rescore
  24. 2026-08-04 15:05 UTCEPSS rescore
  25. 2026-08-02 02:23 UTCEPSS rescore
Show 65 more
  1. 2026-07-30 16:24 UTCEPSS rescore
  2. 2026-07-30 01:26 UTCEPSS rescore
  3. 2026-07-28 21:51 UTCOSV refresh
  4. 2026-07-28 15:32 UTCEPSS rescore
  5. 2026-07-26 14:51 UTCEPSS rescore
  6. 2026-07-25 14:13 UTCEPSS rescore
  7. 2026-07-23 01:28 UTCEG score recompute▲ 1.40
  8. 2026-07-22 22:07 UTCEG score recompute
  9. 2026-07-22 14:04 UTCEPSS rescore
  10. 2026-07-20 17:04 UTCEPSS rescore
  11. 2026-07-20 17:04 UTCEPSS rescore
  12. 2026-07-16 16:59 UTCEPSS rescore
  13. 2026-07-16 16:59 UTCEPSS rescore
  14. 2026-07-15 16:54 UTCEPSS rescore
  15. 2026-07-15 16:54 UTCEPSS rescore
  16. 2026-07-13 22:26 UTCEPSS rescore
  17. 2026-07-11 14:22 UTCOSV refresh
  18. 2026-07-11 08:24 UTCEPSS rescore
  19. 2026-07-09 19:06 UTCEPSS rescore
  20. 2026-07-04 06:28 UTCEPSS rescore
  21. 2026-07-01 15:02 UTCEPSS rescore
  22. 2026-07-01 15:02 UTCEPSS rescore
  23. 2026-06-25 13:47 UTCEPSS rescore
  24. 2026-06-25 13:47 UTCEPSS rescore
  25. 2026-06-24 14:02 UTCEPSS rescore
  26. 2026-06-23 21:30 UTCEPSS rescore
  27. 2026-06-22 21:05 UTCOSV refresh
  28. 2026-06-21 01:57 UTCEPSS rescore
  29. 2026-06-21 01:57 UTCEPSS rescore
  30. 2026-06-17 17:50 UTCEPSS rescore
  31. 2026-06-16 17:50 UTCEPSS rescore
  32. 2026-06-15 17:45 UTCEPSS rescore
  33. 2026-06-12 23:09 UTCEPSS rescore
  34. 2026-06-11 13:57 UTCEPSS rescore
  35. 2026-06-10 22:15 UTCEPSS rescore
  36. 2026-06-08 14:14 UTCEPSS rescore
  37. 2026-06-07 15:22 UTCEPSS rescore
  38. 2026-06-07 15:22 UTCEPSS rescore
  39. 2026-06-06 13:45 UTCEPSS rescore
  40. 2026-06-06 13:45 UTCEPSS rescore
  41. 2026-06-05 22:44 UTCEPSS rescore
  42. 2026-06-05 11:57 UTCOSV refresh
  43. 2026-06-05 06:08 UTCEPSS rescore
  44. 2026-06-05 06:08 UTCEPSS rescore
  45. 2026-06-04 13:10 UTCEPSS rescore
  46. 2026-06-04 13:10 UTCEPSS rescore
  47. 2026-06-02 20:11 UTCEPSS rescore
  48. 2026-06-02 20:11 UTCEPSS rescore
  49. 2026-06-01 13:49 UTCEPSS rescore
  50. 2026-06-01 13:49 UTCEPSS rescore
  51. 2026-05-31 22:28 UTCEPSS rescore
  52. 2026-05-31 00:14 UTCEPSS rescore
  53. 2026-05-27 13:38 UTCEPSS rescore
  54. 2026-05-27 13:38 UTCEPSS rescore
  55. 2026-05-22 21:15 UTCEPSS rescore
  56. 2026-05-22 21:15 UTCEPSS rescore
  57. 2026-05-22 21:15 UTCEPSS rescore
  58. 2026-05-22 07:34 UTCEG score recompute
  59. 2026-05-22 07:33 UTCGHSA enrichment
  60. 2026-05-20 22:37 UTCEPSS rescore
  61. 2026-05-20 22:37 UTCEPSS rescore
  62. 2026-05-20 11:21 UTCEPSS rescore
  63. 2026-05-20 11:21 UTCEPSS rescore
  64. 2026-05-18 21:30 UTCEPSS rescore
  65. 2026-05-18 21:30 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-43992✓ verified
    First seen Feb 7, 2018

    Asterisk 13.17.2 - 'chan_skinny' Remote Memory Corruption

    Open source ↗

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2017-17090?
CVE-2017-17090 is a high vulnerability published on December 2, 2017. An issue was discovered in chanskinny.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 chanskinny (aka SCCP protocol) channel driver is flooded with certain requests, it can cause the asterisk process to use…
When was CVE-2017-17090 disclosed?
CVE-2017-17090 was first published on December 2, 2017, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-17090 actively exploited?
CVE-2017-17090 is not currently on CISA's Known Exploited Vulnerabilities catalog. EchelonGraph's EG-KEV model classifies it as weaponized: a functional public exploit exists. FIRST EPSS estimates a 82% probability of exploitation in the next 30 days (99th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-17090?
CVE-2017-17090 has a CVSS v3 base score of 7.5 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.9 (HIGH).
How do I remediate CVE-2017-17090?
A fix for CVE-2017-17090 is available: update to the fixed version the vendor names in its advisory.

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