CVE-2017-7191

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3.4%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of service (use-after-free) and possibly execute arbitrary code via unspecified vectors.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
50
EG Risk 50/100CISA 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
Severity98% × 45%
Exploitation3% × 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
3.4%
EPSS %ILE
88th
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 none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 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

March 27, 2017

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Oct 5, 2026
Patch available. Sources: github_commit.
generic
https://irssi.org/security/irssi_sa_2017_03.txt
github_commit

commit 77b2631c7846 (irssi/irssi)

Fix landed in irssi/irssi commit 77b2631c7846 — awaiting tagged release

https://github.com/irssi/irssi/commit/77b2631c78461965bc9a7414aae206b5c514e1b3
generic

CVE-2017-7191 - PSIRT.COM

http://www.securityfocus.com/bid/97185

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
irssi—
  • every version up to 1.0.2-1: fixed in 1.0.2-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
irssi—
  • every version up to 1.0.2-1: fixed in 1.0.2-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
irssi—
  • every version up to 1.0.2-1: fixed in 1.0.2-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
irssi—
  • every version up to 1.0.2-1: fixed in 1.0.2-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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.

Showing the most recent 100 of 190 total refreshes for this CVE.

  1. 2026-10-05 17:39 UTCEPSS rescore
  2. 2026-10-04 23:45 UTCOSV refresh
  3. 2026-10-03 14:21 UTCEPSS rescore
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  5. 2026-09-30 14:59 UTCEPSS rescore
  6. 2026-09-30 09:39 UTCEG score recompute
  7. 2026-09-28 13:45 UTCEPSS rescore
  8. 2026-09-27 13:40 UTCEPSS rescore
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  10. 2026-09-26 15:53 UTCEPSS rescore
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  18. 2026-09-15 08:24 UTCOSV refresh
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  1. 2026-09-04 05:02 UTCEPSS rescore
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  6. 2026-08-28 21:36 UTCEPSS rescore
  7. 2026-08-27 14:21 UTCEPSS rescore
  8. 2026-08-27 07:34 UTCOSV refresh
  9. 2026-08-26 14:41 UTCEPSS rescore
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  19. 2026-08-10 21:08 UTCOSV refresh
  20. 2026-08-09 13:42 UTCEPSS rescore
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  22. 2026-08-07 16:22 UTCEPSS rescore
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  25. 2026-08-05 19:13 UTCEPSS rescore
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  32. 2026-07-26 14:51 UTCEPSS rescore
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  34. 2026-07-25 21:01 UTCOSV refresh
  35. 2026-07-23 14:15 UTCEPSS rescore
  36. 2026-07-23 01:30 UTCEG score recompute
  37. 2026-07-22 22:10 UTCEG score recompute
  38. 2026-07-22 14:04 UTCEPSS rescore
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  40. 2026-07-20 17:04 UTCEPSS rescore
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  42. 2026-07-19 14:28 UTCEPSS rescore
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  46. 2026-07-18 10:01 UTCEPSS rescore
  47. 2026-07-16 16:59 UTCEPSS rescore
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  49. 2026-07-15 16:55 UTCEPSS rescore
  50. 2026-07-15 16:54 UTCEPSS rescore
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  55. 2026-07-12 05:43 UTCEPSS rescore
  56. 2026-07-11 08:24 UTCEPSS rescore
  57. 2026-07-09 19:06 UTCEPSS rescore
  58. 2026-07-08 15:39 UTCOSV refresh
  59. 2026-07-08 15:11 UTCEPSS rescore
  60. 2026-07-07 13:42 UTCEPSS rescore
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  70. 2026-06-30 23:19 UTCEPSS rescore
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  74. 2026-06-28 04:53 UTCEPSS rescore
  75. 2026-06-28 04:53 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2017-7191?
CVE-2017-7191 is a critical vulnerability published on March 27, 2017. The netjoin processing in Irssi 1.x before 1.0.2 allows attackers to cause a denial of service (use-after-free) and possibly execute arbitrary code via unspecified vectors.
When was CVE-2017-7191 disclosed?
CVE-2017-7191 was first published on March 27, 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-2017-7191 actively exploited?
CVE-2017-7191 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.4% probability of exploitation in the next 30 days (88th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2017-7191?
CVE-2017-7191 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2017-7191?
A fix for CVE-2017-7191 is available: update to the fixed version the vendor names in its advisory.

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