CVE-2021-43323

CVE-2021-43323

High · published February 3, 2022

CVSS v3.1
8.2
EPSS
0%
Percentile
27.6
In the wild
Unconfirmed
What it is

An issue was discovered in UsbCoreDxe in Insyde InsydeH2O with kernel 5.5 before 05.51.45, 5.4 before 05.43.45, 5.3 before 05.35.45, 5.2 before 05.26.45, 5.1 before 05.16.45, and 5.0 before 05.08.45. An SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00351 · 27.6th percentile
Published
2022-02-03T07:15Z
Affected products (6)
ProductVersionsFixed in
insyde/insydeh2o≥ 5.1, < 5.16.455.16.45
insyde/insydeh2o≥ 5.2, < 5.26.455.26.45
insyde/insydeh2o≥ 5.3, < 5.33.455.33.45
insyde/insydeh2o≥ 5.0, < 5.08.455.08.45
insyde/insydeh2o≥ 5.4, < 5.43.455.43.45
insyde/insydeh2o≥ 5.5, < 5.51.455.51.45
References (8)
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf · [email protected]https://security.netapp.com/advisory/ntap-20220217-0013/ · [email protected]https://www.insyde.com/security-pledge · [email protected]https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20220217-0013/ · af854a3a-2127-422b-91ae-364da2661108https://www.insyde.com/security-pledge · af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/796611 · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-306654.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 03 FEB 01:50Z
    An issue was discovered in UsbCoreDxe in Insyde InsydeH2O with kernel 5.5 before 05.51.45, 5.4 before 05.43.45, 5.3 before 05.35.45, 5.2 before 05.26.45, 5.1…
    cvelistv5