How severe is CVE-2022-25368?

CVE-2022-25368 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-25368 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-25368?

CVE-2022-25368 primarily affects Amperecomputing Ampere Altra Max Firmware. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-25368?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-25368 published?

CVE-2022-25368 was published on 2022-03-10 and last updated on 2026-06-17.

CVE-2022-25368

CVE-2022-25368 is a medium-severity vulnerability in Amperecomputing Ampere Altra Max Firmware with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 1.9
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Amperecomputing Ampere Altra Max Firmware
Published: 2022-03-10
Last modified: 2026-06-17

Description

Spectre BHB is a variant of Spectre-v2 in which malicious code uses the shared branch history (stored in the CPU BHB) to influence mispredicted branches in the victim's hardware context. Speculation caused by these mispredicted branches can then potentially be used to cause cache allocation, which can then be used to infer information that should be protected.

Frequently asked questions

What is CVE-2022-25368?: Spectre BHB is a variant of Spectre-v2 in which malicious code uses the shared branch history (stored in the CPU BHB) to influence mispredicted branches in the victim's hardware context. Speculation caused by these mispredicted branches can then potentially be used to cause cache allocation, which can then be used to infer information that should be protected.
How severe is CVE-2022-25368?: CVE-2022-25368 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2022-25368 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-25368?: CVE-2022-25368 primarily affects Amperecomputing Ampere Altra Max Firmware. In total, 22 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-25368?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-25368 published?: CVE-2022-25368 was published on 2022-03-10 and last updated on 2026-06-17.

References

Affected products (22)

cpe:2.3:o:amperecomputing:ampere_altra_max_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampere_altra_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:neoverse-e1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:neoverse-v1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a57_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a65_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a65ae_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a72_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a73_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a75_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a76_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a76ae_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a77_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a78_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a78ae_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a78c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-x1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-x2_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a710_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:cortex-a15_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:neoverse_n1_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:arm:neoverse_n2_firmware:-:*:*:*:*:*:*:*

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