Vulnerability Monitor

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CVE-2021-38578

Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

Published

2022-03-03T22:15:08.423

Last Modified

2025-11-03T20:15:49.767

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.4 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-124
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application tianocore edk2 ≤ 202202 Yes
Operating System insyde kernel 5.0 Yes
Operating System insyde kernel 5.1 Yes
Operating System insyde kernel 5.2 Yes
Operating System insyde kernel 5.3 Yes
Operating System insyde kernel 5.4 Yes
Operating System insyde kernel 5.5 Yes
References