VulnerabilityModified
CVE-2023-22613
It is possible to write to an attacker-controlled address.
HIGH 8.8EPSS 0.21%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.21% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- insyde/insydeh2o
- Source
- cve@mitre.org
References
- https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Not Applicable
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2023023Vendor Advisory
- https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Not Applicable
- https://www.insyde.com/security-pledgeVendor Advisory
- https://www.insyde.com/security-pledge/SA-2023023Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.