HOMEVULNERABILITIESCVE-2022-35896
MEDIUM

CVE-2022-35896

CWE-20Published: September 22, 2022· Updated: Jun 17, 2026

6.0
CVSS v3.1

Official Description

An issue SMM memory leak vulnerability in SMM driver (SMRAM was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An attacker can dump SMRAM contents via the software SMI provided by the FvbServicesRuntimeDxe driver to read the contents of SMRAM, leading to information disclosure.

NVD Source

Technical Analysis

CVE-2022-35896 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), with a CVSS base score of 6.0.

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
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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-2022-025/index.html
ADVISORYhttps://www.insyde.com/security-pledge
ADVISORYhttps://www.insyde.com/security-pledge/SA-2022034
ADVISORYhttps://binarly.io/advisories/BRLY-2022-025/index.html
ADVISORYhttps://www.insyde.com/security-pledge
ADVISORYhttps://www.insyde.com/security-pledge/SA-2022034

All References (6)

→
https://binarly.io/advisories/BRLY-2022-025/index.htmlExploit · Third Party Advisory
→
https://www.insyde.com/security-pledgeVendor Advisory
→
https://www.insyde.com/security-pledge/SA-2022034Vendor Advisory
→
https://binarly.io/advisories/BRLY-2022-025/index.htmlExploit · Third Party Advisory
→
https://www.insyde.com/security-pledgeVendor Advisory
→
https://www.insyde.com/security-pledge/SA-2022034Vendor Advisory

Quick Facts

CVE IDCVE-2022-35896
CVSS Score6.0 / 10
SeverityMEDIUM
WeaknessCWE-20
CISA KEVNo
Affected1 vendor(s)
PublishedSep 22, 2022

Related CVEs (CWE-20)

CVE-2002-2365
10.0
CVE-2002-1874
10.0
CVE-2002-2236
10.0
CVE-2002-1358
10.0
CVE-2002-1360
10.0
CVE-2003-1487
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-35896 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.
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