October 13, 2026

CVE Watchtower

← Back to CVE List

CVE-2025-62864NVD

Vulnerability Summary

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 MMCommunicate service that could result in an out-of-bounds write within the UEFI-MM Secure Partition context.
Severity Level
CRITICAL(9.8)
Published Date
Dec 16, 2025
Last Modified
Oct 13, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.37%Probability
Root Weakness (CWE)
CWE-787: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Amperecomputing Ampereone A192-32m Firmware < 5.4.5.1
  • Amperecomputing Ampereone A192-26m Firmware < 5.4.5.1
  • Amperecomputing Ampereone A160-28m Firmware < 5.4.5.1
  • Amperecomputing Ampereone A144-33m Firmware < 5.4.5.1
  • Amperecomputing Ampereone A144-26m Firmware < 5.4.5.1
  • Amperecomputing Ampereone A96-36m Firmware < 5.4.5.1
  • Amperecomputing Ampereone A96-36x Firmware < 4.4.5.2
  • Amperecomputing Ampereone A128-34x Firmware < 4.4.5.2
  • Amperecomputing Ampereone A144-24x Firmware < 4.4.5.2
  • Amperecomputing Ampereone A144-27x Firmware < 4.4.5.2
  • Amperecomputing Ampereone A160-28x Firmware < 4.4.5.2
  • Amperecomputing Ampereone A192-26x Firmware < 4.4.5.2
  • Amperecomputing Ampereone A192-26x Firmware < 3.5.9.3
  • Amperecomputing Ampereone A192-32x Firmware < 3.5.9.3
Patched Versions
  • Amperecomputing Ampereone A192-32m Firmware 5.4.5.1
  • Amperecomputing Ampereone A192-26m Firmware 5.4.5.1
  • Amperecomputing Ampereone A160-28m Firmware 5.4.5.1
  • Amperecomputing Ampereone A144-33m Firmware 5.4.5.1
  • Amperecomputing Ampereone A144-26m Firmware 5.4.5.1
  • Amperecomputing Ampereone A96-36m Firmware 5.4.5.1
  • Amperecomputing Ampereone A96-36x Firmware 4.4.5.2
  • Amperecomputing Ampereone A128-34x Firmware 4.4.5.2
  • Amperecomputing Ampereone A144-24x Firmware 4.4.5.2
  • Amperecomputing Ampereone A144-27x Firmware 4.4.5.2
  • Amperecomputing Ampereone A160-28x Firmware 4.4.5.2
  • Amperecomputing Ampereone A192-26x Firmware 4.4.5.2
  • Amperecomputing Ampereone A192-26x Firmware 3.5.9.3
  • Amperecomputing Ampereone A192-32x Firmware 3.5.9.3
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.
🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
🚫Ad-Free — Uninterrupted experience.

External References