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CVE-2022-23960

MEDIUM

5.6

CVSS Score

Published: March 12, 2022 at 11:57 PM UTC

Updated: October 8, 2026 at 10:17 PM UTC

22 products affected across 3 vendorsDebian LinuxXenCortex A72 Firmware· also runs on 20 platforms

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Severity

MEDIUM5.6

Exploit prediction

EPSS 0.5%

SSVC

No known exploit

Description

Certain Arm Cortex and Neoverse processors through 2022-03-08 do not properly restrict cache speculation, aka Spectre-BHB. An attacker can leverage the shared branch history in the Branch History Buffer (BHB) to influence mispredicted branches. Then, cache allocation can allow the attacker to obtain sensitive information.

Affected

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

Cortex A57 Firmware · Arm

95%

-

arm-cortex-a57 (same device)

Cortex A65 Firmware · Arm

95%

-

arm-cortex-a65 (same device)

Cortex A65AE Firmware · Arm

95%

-

arm-cortex-a65ae (same device)

Cortex A710 Firmware · Arm

95%

-

arm-cortex-a710 (same device)

Cortex A72 Firmware · Arm

95%

-

arm-cortex-a72 (same device)

Cortex A73 Firmware · Arm

95%

-

arm-cortex-a73 (same device)

Cortex A75 Firmware · Arm

95%

-

arm-cortex-a75 (same device)

Cortex A76 Firmware · Arm

95%

-

arm-cortex-a76 (same device)

Cortex A76AE Firmware · Arm

95%

-

arm-cortex-a76ae (same device)

Cortex A77 Firmware · Arm

95%

-

arm-cortex-a77 (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Cortex-A57 · Arm

95%

Cortex-A65 · Arm

95%

Cortex-A65Ae · Arm

95%

Cortex-A710 · Arm

95%

Cortex-A72 · Arm

95%

Cortex-A73 · Arm

95%

Cortex-A75 · Arm

95%

Cortex-A76 · Arm

95%

Cortex-A76AE · Arm

95%

Cortex-A77 · Arm

95%

Remediation

No guide yet

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

Patch and advisory references

References (5)

Mailing Listx_refsource_MLISTPatchThird Party Advisory

Source: [email protected]

http://www.openwall.com/lists/oss-security/2022/03/18/2

x_refsource_MISCVendor Advisory

Source: [email protected]

https://developer.arm.com/support/arm-security-updates

x_refsource_CONFIRMMitigationPatchVendor Advisory

Source: [email protected]

https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability

Mailing Listx_refsource_MLISTThird Party Advisory

Source: [email protected]

https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

Vendor Advisoryx_refsource_DEBIANThird Party Advisory

Source: [email protected]

https://www.debian.org/security/2022/dsa-5173

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

5.6MEDIUM[email protected]

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

Vector?

Quick Info

StatusMODIFIED

CWE

NVD-CWE-noinfo

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