CVE-2022-38691

HIGHNVD 7.87.8—Elevated

7.8

In BootROM, there is a possible missing validation for Certificate Type 0. This could lead to local escalation of privilege with no additional execution privileges needed.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 26.1%
KEV: Not listed

Published

September 1, 2025

Last Modified

April 15, 2026

References (1)

security@unisochttps://www.nccgroup.com/research-blog/there-s-another-hole-in-your-soc-unisoc-rom-vulnerabilities/

Weakness Classification(1)

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

CWE-250Execution with Unnecessary Privileges

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
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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 PoCTomKing062/CVE-2022-38691_38692
First seen Dec 1, 2023
Let's control Secure Boot Chain ourselves.
Open source ↗

Frequently asked(5)

What is CVE-2022-38691?

CVE-2022-38691 is a high vulnerability published on September 1, 2025. In BootROM, there is a possible missing validation for Certificate Type 0. This could lead to local escalation of privilege with no additional execution privileges needed.

When was CVE-2022-38691 disclosed?

CVE-2022-38691 was first published in the National Vulnerability Database on September 1, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-38691 actively exploited?

CVE-2022-38691 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-38691?

CVE-2022-38691 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2022-38691?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-38691, 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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CVE-2022-38691

📅 Published

🔄 Last Modified

🔗 References (1)

Weakness Classification(1)

Data Freshness Timeline

Publicly available exploits

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-38691?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (1)

Frequently asked(5)

Related CVEs(same CWE)