CVE-2022-36448

HIGHNVD 8.28.2—Elevated

8.2

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. There is an SMM memory corruption vulnerability in the Software SMI handler in the PnpSmm driver.

CVSS v3: 8.2
EG Score: 8.2(medium)
EPSS: 23.3%
KEV: Not listed

Published

September 28, 2022

Last Modified

May 21, 2025

References (6)

cve@mitrehttps://binarly.io/advisories/BRLY-2022-023/index.html
cve@mitrehttps://www.insyde.com/security-pledge
cve@mitrehttps://www.insyde.com/security-pledge/SA-2022032
af854a3a-2127-422b-91ae-364da2661108https://binarly.io/advisories/BRLY-2022-023/index.html
af854a3a-2127-422b-91ae-364da2661108https://www.insyde.com/security-pledge
af854a3a-2127-422b-91ae-364da2661108https://www.insyde.com/security-pledge/SA-2022032

Weakness Classification(1)

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

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 13× in last 7d / 20× 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.

2026-06-08 14:15 UTCEPSS rescore
2026-06-08 14:15 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-07 15:23 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-06 13:46 UTCEPSS rescore
2026-06-05 22:46 UTCEPSS rescore
2026-06-05 22:45 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-05 06:09 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-04 13:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-02 20:11 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-06-01 13:50 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore
2026-05-31 22:29 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-36448?

CVE-2022-36448 is a high vulnerability published on September 28, 2022. An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. There is an SMM memory corruption vulnerability in the Software SMI handler in the PnpSmm driver.

When was CVE-2022-36448 disclosed?

CVE-2022-36448 was first published in the National Vulnerability Database on September 28, 2022, with the most recent update on May 21, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-36448 actively exploited?

CVE-2022-36448 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 23.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-36448?

CVE-2022-36448 has a CVSS v3 base score of 8.2 (NVD).

How do I remediate CVE-2022-36448?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-36448, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-36448

Explore →

Is Your Infrastructure Affected by CVE-2022-36448?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2022-36448

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-36448?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)