CVE-2023-22524

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 24.7%, top 2% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 25%CVSS: 9.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Certain versions of the Atlassian Companion App for MacOS were affected by a remote code execution vulnerability. An attacker could utilize WebSockets to bypass Atlassian Companion’s blocklist and MacOS Gatekeeper to allow execution of code.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track*)
EG Risk 60/100SSVC: Track*

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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
25%
EPSS %ILE
98%
KEV
Not listed

Published

December 6, 2023

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Aug 7, 2026
No patch confirmed yet.
generic

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https://jira.atlassian.com/browse/CONFSERVER-93518
generic

CVE-2023-22524 - RCE Vulnerability in Atlassian Companion App for MacOS | Atlassian Support | Atlassian Documentation

https://confluence.atlassian.com/security/cve-2023-22524-rce-vulnerability-in-atlassian-companion-app-for-macos-1319249492.html

Data Freshness Timeline

(refreshed 7× in last 7d / 41× 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 115 total refreshes for this CVE.

  1. 2026-08-07 16:24 UTCEPSS rescore
  2. 2026-08-06 13:44 UTCEPSS rescore
  3. 2026-08-05 19:15 UTCEPSS rescore
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  20. 2026-07-23 02:18 UTCEG score recompute
  21. 2026-07-22 23:06 UTCEG score recompute▲ 0.20
  22. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-19 02:27 UTCEPSS rescore
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  24. 2026-07-02 16:58 UTCEPSS rescore
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  26. 2026-06-29 14:04 UTCEPSS rescore
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  31. 2026-06-27 03:07 UTCEPSS rescore
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  40. 2026-06-21 14:55 UTCEPSS rescore
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  42. 2026-06-21 01:58 UTCEPSS rescore
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  44. 2026-06-18 17:51 UTCEPSS rescore
  45. 2026-06-18 17:51 UTCEPSS rescore
  46. 2026-06-17 17:51 UTCEPSS rescore
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  48. 2026-06-16 17:51 UTCEPSS rescore
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  51. 2026-06-15 17:47 UTCEPSS rescore
  52. 2026-06-14 23:16 UTCEPSS rescore
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  57. 2026-06-10 22:17 UTCEPSS rescore
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  60. 2026-06-07 15:23 UTCEPSS rescore
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  62. 2026-06-06 13:46 UTCEPSS rescore
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  67. 2026-06-05 06:09 UTCEPSS rescore
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  69. 2026-06-04 13:11 UTCEPSS rescore
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  71. 2026-06-02 20:12 UTCEPSS rescore
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  74. 2026-05-31 22:29 UTCEPSS rescore
  75. 2026-05-31 22:29 UTCEPSS rescore

Publicly available exploits

(1 reference)

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

  • GitHub PoCron-imperva/CVE-2023-22524
    First seen Dec 14, 2023

    Atlassian Companion RCE Vulnerability Proof of Concept

    Open source ↗

Frequently asked(5)

What is CVE-2023-22524?
CVE-2023-22524 is a critical vulnerability published on December 6, 2023. Certain versions of the Atlassian Companion App for MacOS were affected by a remote code execution vulnerability. An attacker could utilize WebSockets to bypass Atlassian Companion’s blocklist and MacOS Gatekeeper to allow execution of code.
When was CVE-2023-22524 disclosed?
CVE-2023-22524 was first published in the National Vulnerability Database on December 6, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-22524 actively exploited?
CVE-2023-22524 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25% probability of exploitation in the next 30 days, which ranks it in the top 2.3% of all scored CVEs.
What is the CVSS score of CVE-2023-22524?
CVE-2023-22524 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-22524?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-22524, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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