CVE-2022-29276

HIGHNVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2022-11-16. NVD baseline CVSS 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.2
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.2Exploit: NoneExposed: 0

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

SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. This issue was discovered by Insyde during security review. It was fixed in: Kernel 5.0: version 05.09.18 Kernel 5.1: version 05.17.18 Kernel 5.2: version 05.27.18 Kernel 5.3: version 05.36.18 Kernel 5.4: version 05.44.18 Kernel 5.5: version 05.52.18 https://www.insyde.com/security-pledge/SA-2022059

CVSS v3
8.2
EG Score
8.2(medium)
EPSS
9.4%
KEV
Not listed

Published

November 15, 2022

Last Modified

April 30, 2025

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 46× 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. 2026-07-18 10:03 UTCEPSS rescore
  2. 2026-07-18 10:02 UTCEPSS rescore
  3. 2026-07-16 17:00 UTCEPSS rescore
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  1. 2026-07-01 15:04 UTCEPSS rescore
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  22. 2026-06-18 17:51 UTCEPSS rescore
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  44. 2026-06-05 22:45 UTCEPSS rescore
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  67. 2026-05-26 07:17 UTCEPSS rescore
  68. 2026-05-25 12:00 UTCEG score recompute
  69. 2026-05-25 12:00 UTCGHSA enrichment
  70. 2026-05-24 16:51 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-29276?
CVE-2022-29276 is a high vulnerability published on November 15, 2022. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. SMI functions in AhciBusDxe use untrusted inputs leading to corruption of SMRAM. This issue was discovered by Insyde during security review. It was fixed in: Kernel 5.0: version 05.09.18 Kernel 5.1: version 05.17.18…
When was CVE-2022-29276 disclosed?
CVE-2022-29276 was first published in the National Vulnerability Database on November 15, 2022, with the most recent update on April 30, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-29276 actively exploited?
CVE-2022-29276 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-29276?
CVE-2022-29276 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2022-29276?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-29276, 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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