CVE-2022-30772

HIGH

8.2

CVSS Score

Published: November 15, 2022 at 12:00 AM UTC

Updated: June 17, 2026 at 04:44 AM UTC

1 product affected across 1 vendorKernel

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Severity

HIGH8.2

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Manipulation of the input address in PnpSmm function 0x52 could be used by malware to overwrite SMRAM or OS kernel memory. Function 0x52 of the PnpSmm driver is passed the address and size of data to write into the SMBIOS table, but manipulation of the address could be used by malware to overwrite SMRAM or OS kernel memory. This issue was discovered by Insyde engineering during a security review. This issue is fixed in: Kernel 5.0: 05.09.41 Kernel 5.1: 05.17.43 Kernel 5.2: 05.27.30 Kernel 5.3: 05.36.30 Kernel 5.4: 05.44.30 Kernel 5.5: 05.52.30 https://www.insyde.com/security-pledge/SA-2022065

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Kernel · Insyde

95%

5.0 ≤ v < 5.0.05.09.415.1 ≤ v < 5.1.05.17.435.2 ≤ v < 5.2.05.27.305.3 ≤ v < 5.3.05.36.305.4 ≤ v < 5.4.05.44.305.5 ≤ v < 5.5.05.52.30

Affected range stops below 5.0.05.09.41, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.1.05.17.43, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.2.05.27.30, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.3.05.36.30, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.4.05.44.30, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.5.05.52.30, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory

Source: [email protected]

https://www.insyde.com/security-pledge

Vendor Advisory

Source: [email protected]

https://www.insyde.com/security-pledge/SA-2022065

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHCISA-ADP

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-787

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