Buffer overflow in Insyde Insydeh2o
CVE-2021-33625
An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, whic…
Vulnerability class: Buffer Overflow
EPSS: 0.003 (22.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2021-33625?
- CVE-2021-33625 is a high-severity vulnerability in Insyde Insydeh2o, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2022-02-03.
- How severe is CVE-2021-33625?
- High severity. CVSS v3 base score is 7.5 out of 10.