CVE-2022-23740

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2022-11-23. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: None knownExposed: 0

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

CRITICAL: An improper neutralization of argument delimiters in a command vulnerability was identified in GitHub Enterprise Server that enabled remote code execution. To exploit this vulnerability, an attacker would need permission to create and build GitHub Pages using GitHub Actions. This vulnerability affected only version 3.7.0 of GitHub Enterprise Server and was fixed in version 3.7.1. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
63%
KEV
Not listed

Published

November 23, 2022

Last Modified

April 28, 2025

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 44× 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 106 total refreshes for this CVE.

  1. 2026-07-26 14:52 UTCEPSS rescore
  2. 2026-07-26 14:52 UTCEPSS rescore
  3. 2026-07-25 14:15 UTCEPSS rescore
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  6. 2026-07-23 02:08 UTCEG score recompute
  7. 2026-07-22 22:55 UTCEG score recompute
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  1. 2026-07-12 05:44 UTCEPSS rescore
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  45. 2026-06-11 13:58 UTCEPSS rescore
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  53. 2026-06-06 13:46 UTCEPSS rescore
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  74. 2026-05-27 13:39 UTCEPSS rescore
  75. 2026-05-27 13:39 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2022-23740?
CVE-2022-23740 is a high vulnerability published on November 23, 2022. CRITICAL: An improper neutralization of argument delimiters in a command vulnerability was identified in GitHub Enterprise Server that enabled remote code execution. To exploit this vulnerability, an attacker would need permission to create and build GitHub Pages using GitHub Actions. This…
When was CVE-2022-23740 disclosed?
CVE-2022-23740 was first published in the National Vulnerability Database on November 23, 2022, with the most recent update on April 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-23740 actively exploited?
CVE-2022-23740 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 37.3% of all scored CVEs.
What is the CVSS score of CVE-2022-23740?
CVE-2022-23740 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2022-23740?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-23740, 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.

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