How severe is CVE-2025-62862?

CVE-2025-62862 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2025-62862 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-62862?

CVE-2025-62862 primarily affects Amperecomputing Ampereone A192-32m Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-62862?

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

Does CVE-2025-62862 have an EU (EUVD) identifier?

Yes. CVE-2025-62862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203819.

When was CVE-2025-62862 published?

CVE-2025-62862 was published on 2025-12-16 and last updated on 2026-06-17.

CVE-2025-62862

CVE-2025-62862 is a medium-severity vulnerability in Amperecomputing Ampereone A192-32m Firmware with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-203819
Weakness: CWE-125
Affected product: Amperecomputing Ampereone A192-32m Firmware
Published: 2025-12-16
Last modified: 2026-06-17

Description

Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.

Frequently asked questions

What is CVE-2025-62862?: Ampere AmpereOne AC03 devices before 3.5.9.3, AmpereOne AC04 devices before 4.4.5.2, and AmpereOne M devices before 5.4.5.1 allow an incorrectly formed SMC call to UEFI-MM Boot Error Record Table driver that could result in (1) an out-of-bounds read which leaks Secure-EL0 information to a process running in Non-Secure state or (2) an out-of-bounds write which corrupts Secure or Non-Secure memory, limited to memory mapped to UEFI-MM Secure Partition by the Secure Partition Manager.
How severe is CVE-2025-62862?: CVE-2025-62862 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2025-62862 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-62862?: CVE-2025-62862 primarily affects Amperecomputing Ampereone A192-32m Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-62862?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-62862 have an EU (EUVD) identifier?: Yes. CVE-2025-62862 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-203819.
When was CVE-2025-62862 published?: CVE-2025-62862 was published on 2025-12-16 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:o:amperecomputing:ampereone_a192-32m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a192-26m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a160-28m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a144-33m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a144-26m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a96-36m_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a96-36x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a128-34x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a144-24x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a144-27x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a160-28x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a192-26x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amperecomputing:ampereone_a192-32x_firmware:*:*:*:*:*:*:*:*

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