CVE-2022-29277

HIGH

8.8

CVSS Score

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

Updated: June 17, 2026 at 04:39 AM UTC

78 products affected across 2 vendorsRyzen 5800X3D FirmwareRyzen 5600X FirmwareRyzen 5600G Firmware

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Severity

HIGH8.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

Incorrect pointer checks within the the FwBlockServiceSmm driver can allow arbitrary RAM modifications During review of the FwBlockServiceSmm driver, certain instances of SpiAccessLib could be tricked into writing 0xff to arbitrary system and SMRAM addresses. Fixed in: INTEL Purley-R: 05.21.51.0048 Whitley: 05.42.23.0066 Cedar Island: 05.42.11.0021 Eagle Stream: 05.44.25.0052 Greenlow/Greenlow-R(skylake/kabylake): Trunk Mehlow/Mehlow-R (CoffeeLake-S): Trunk Tatlow (RKL-S): Trunk Denverton: 05.10.12.0042 Snow Ridge: Trunk Graneville DE: 05.05.15.0038 Grangeville DE NS: 05.27.26.0023 Bakerville: 05.21.51.0026 Idaville: 05.44.27.0030 Whiskey Lake: Trunk Comet Lake-S: Trunk Tiger Lake H/UP3: 05.43.12.0052 Alder Lake: 05.44.23.0047 Gemini Lake: Not Affected Apollo Lake: Not Affected Elkhart Lake: 05.44.30.0018 AMD ROME: trunk MILAN: 05.36.10.0017 GENOA: 05.52.25.0006 Snowy Owl: Trunk R1000: 05.32.50.0018 R2000: 05.44.30.0005 V2000: Trunk V3000: 05.44.30.0007 Ryzen 5000: 05.44.30.0004 Embedded ROME: Trunk Embedded MILAN: Trunk Hygon Hygon #1/#2: 05.36.26.0016 Hygon #3: 05.44.26.0007 https://www.insyde.com/security-pledge/SA-2022060

Affected

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

Genoa Firmware · AMD

95%

v < 05.52.25.0006

Affected range stops below 05.52.25.0006, so it looks safe — our inference, not a vendor statement

amd-genoa (same device)

Hygon 1 Firmware · AMD

95%

v < 05.36.26.0016

Affected range stops below 05.36.26.0016, so it looks safe — our inference, not a vendor statement

amd-hygon-1 (same device)

Hygon 2 Firmware · AMD

95%

v < 05.36.26.0016

Affected range stops below 05.36.26.0016, so it looks safe — our inference, not a vendor statement

amd-hygon-2 (same device)

Hygon 3 Firmware · AMD

95%

v < 05.44.26.0007

Affected range stops below 05.44.26.0007, so it looks safe — our inference, not a vendor statement

amd-hygon-3 (same device)

Milan Firmware · AMD

95%

v < 05.36.10.0017v < 05.36.26.0016

Affected range stops below 05.36.10.0017, so it looks safe — our inference, not a vendor statement

Affected range stops below 05.36.26.0016, so it looks safe — our inference, not a vendor statement

amd-milan (same device)

Rome Firmware · AMD

95%

v < 05.36.10.0017v < 05.36.26.0016

Affected range stops below 05.36.10.0017, so it looks safe — our inference, not a vendor statement

Affected range stops below 05.36.26.0016, so it looks safe — our inference, not a vendor statement

amd-rome (same device)

Ryzen 5300G Firmware · AMD

95%

v < 05.44.30.0004

Affected range stops below 05.44.30.0004, so it looks safe — our inference, not a vendor statement

amd-ryzen-5300g (same device)

Ryzen 5300GE Firmware · AMD

95%

v < 05.44.30.0004

Affected range stops below 05.44.30.0004, so it looks safe — our inference, not a vendor statement

amd-ryzen-5300ge (same device)

Ryzen 5600G Firmware · AMD

95%

v < 05.44.30.0004

Affected range stops below 05.44.30.0004, so it looks safe — our inference, not a vendor statement

amd-ryzen-5600g (same device)

Ryzen 5600GE Firmware · AMD

95%

v < 05.44.30.0004

Affected range stops below 05.44.30.0004, so it looks safe — our inference, not a vendor statement

amd-ryzen-5600ge (same device)

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-2022060

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

8.8HIGHCISA-ADP

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

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-787

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