HOMEVULNERABILITIESCVE-2022-36448
HIGH

CVE-2022-36448

CWE-20Published: September 28, 2022· Updated: Jun 17, 2026

8.2
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2022-36448 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.2.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeChanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected Vendors & Products

insyde1 product(s)
insydeh2o
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://binarly.io/advisories/BRLY-2022-023/index.html
ADVISORYhttps://www.insyde.com/security-pledge
ADVISORYhttps://www.insyde.com/security-pledge/SA-2022032
ADVISORYhttps://binarly.io/advisories/BRLY-2022-023/index.html
ADVISORYhttps://www.insyde.com/security-pledge
ADVISORYhttps://www.insyde.com/security-pledge/SA-2022032

All References (6)

→
https://binarly.io/advisories/BRLY-2022-023/index.htmlExploit · Third Party Advisory
→
https://www.insyde.com/security-pledgeVendor Advisory
→
https://www.insyde.com/security-pledge/SA-2022032Vendor Advisory
→
https://binarly.io/advisories/BRLY-2022-023/index.htmlExploit · Third Party Advisory
→
https://www.insyde.com/security-pledgeVendor Advisory
→
https://www.insyde.com/security-pledge/SA-2022032Vendor Advisory

Quick Facts

CVE IDCVE-2022-36448
CVSS Score8.2 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedSep 28, 2022

Related CVEs (CWE-20)

CVE-2009-0545
10.0
CVE-2007-6176
10.0
CVE-2020-13753
10.0
CVE-2008-6555
10.0
CVE-2007-6494
10.0
CVE-2011-0923
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-36448 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2022-36448·NVD