01 Record
CVE-2021-41837
An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write
UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
02 Description
An issue was discovered in AhciBusDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. Because of an Untrusted Pointer Dereference that causes SMM memory corruption, an attacker may be able to write
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.28% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 20.3% of scored records. A rank, not a probability.
- NVD base score
- 8.2 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-08-11.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-02-03 01:23Z4 YR AGO
- Last updated
- 2026-08-11 12:22Z2 MO AGO
- Reserved
- 2021-10-01
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
- Data version
- 5.2
- Document digest
- 40bd0645467ef03482bc679ac24d3adb632c18f10a7970edb11b0ddd5fab8df8
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.insyde.comhttps://www.insyde.com/security-pledge
- www.insyde.comhttps://www.insyde.com/security-pledge/SA-2022024
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20220222-0003/
- www.kb.cert.orghttps://www.kb.cert.org/vuls/id/796611
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-306654.html