CVE-2022-27540

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-06-29. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

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

A potential Time-of-Check to Time-of Use (TOCTOU) vulnerability has been identified in the HP BIOS for certain HP PC products, which might allow arbitrary code execution, denial of service, and information disclosure. HP is releasing BIOS updates to mitigate the potential vulnerability.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
2.0%
KEV
Not listed

Published

June 28, 2024

Last Modified

January 30, 2026

References (2)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 34× 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. 2026-07-23 02:10 UTCEG score recompute
  2. 2026-07-22 22:57 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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  5. 2026-07-21 15:22 UTCEPSS rescore
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  1. 2026-07-04 06:29 UTCEPSS rescore
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  3. 2026-06-30 23:20 UTCEPSS rescore
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  5. 2026-06-29 14:04 UTCEPSS rescore
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  8. 2026-06-27 03:07 UTCEPSS rescore
  9. 2026-06-25 13:48 UTCEPSS rescore
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  40. 2026-06-05 06:09 UTCEPSS rescore
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  42. 2026-06-04 13:11 UTCEPSS rescore
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  50. 2026-05-31 22:29 UTCEPSS rescore
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  54. 2026-05-29 13:42 UTCEPSS rescore
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  58. 2026-05-27 13:39 UTCEPSS rescore
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  61. 2026-05-26 07:17 UTCEPSS rescore
  62. 2026-05-26 07:17 UTCEPSS rescore
  63. 2026-05-23 23:11 UTCEG score recompute
  64. 2026-05-23 23:11 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2022-27540?
CVE-2022-27540 is a high vulnerability published on June 28, 2024. A potential Time-of-Check to Time-of Use (TOCTOU) vulnerability has been identified in the HP BIOS for certain HP PC products, which might allow arbitrary code execution, denial of service, and information disclosure. HP is releasing BIOS updates to mitigate the potential vulnerability.
When was CVE-2022-27540 disclosed?
CVE-2022-27540 was first published in the National Vulnerability Database on June 28, 2024, with the most recent update on January 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-27540 actively exploited?
CVE-2022-27540 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-27540?
CVE-2022-27540 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-27540?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-27540, 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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