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CVE-2022-35888

MEDIUM
6.5
CVSS Score
Published: September 29, 2022 at 12:41 AM UTC
Updated: June 17, 2026 at 04:52 AM UTC
6 products affected across 1 vendorAmpere Altra FirmwareAmpere Altra Max FirmwareAmpereone Firmware

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

Description

Ampere Altra and Ampere Altra Max devices through 2022-07-15 allow attacks via Hertzbleed, which is a power side-channel attack that extracts secret information from the CPU by correlating the power consumption with data being processed on the system.

Affected

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

Ampere Altra Firmware· Amperecomputing
95%
v ≤ 2022-07-15
amperecomputing-ampere-altra (same device)
Ampere Altra Max Firmware· Amperecomputing
95%
v ≤ 2022-07-15
amperecomputing-ampere-altra-max (same device)
Ampereone Firmware· Amperecomputing
95%
v ≤ 2022-07-15
amperecomputing-ampereone (same device)
Ampere Altra· Amperecomputingdevice
80%
All versions
Ampere Altra Max· Amperecomputingdevice
80%
All versions
Ampereone· Amperecomputingdevice
80%
All versions

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)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://amperecomputing.com/products/security-bulletins/hertzbleed.html
x_refsource_MISCTechnical DescriptionThird Party Advisory
Source: [email protected]
https://developer.arm.com/documentation/ka005111/1-0/?lang=en

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.5MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-203

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