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🛡️ CVE-2025-24305 on Ubuntu — intel-microcode

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Insufficient control flow management in the Alias Checking Trusted Module (ACTM) firmware for some Intel(R) Xeon(R) processors may allow a privileged user to potentially enable escalation of privilege via local access.

Distribution advisory

This page covers CVE-2025-24305 as tracked by Ubuntu, for the package intel-microcode. The fix is available in version 3.20250812.0ubuntu0.25.10.1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs administrative privileges on the target. No user interaction is required. Rated impact: confidentiality high, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

  • Attack vector: Local — a local account, shell or session on the host is needed.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Attack requirements: None — no deployment-specific condition has to hold.
  • Privileges required: High — administrative rights are needed first.
  • User interaction: None — nobody has to be tricked into anything.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

UBUNTU-CVE-2025-24305 is classified as CWE-691: Insufficient Control Flow Management. The code does not sufficiently manage its control flow during execution, creating conditions in which the control flow can be modified in unexpected ways.

Affected software

UBUNTU-CVE-2025-24305 is recorded against 1 package.

  • intel-microcode (fixed in 3.20250812.0ubuntu0.25.10.1)

Timeline and source

Published on 12 August 2025 and last revised on 4 February 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
github.com (Report)
www.intel.com (Report)
ubuntu.com (Advisory)

Other advisories for this package

intel-microcode has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-691: Insufficient Control Flow Management) in other software:

CVE-2025-24305 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-08-12
Updated 2026-08-20
Modified 2026-02-04
Fix URL N/A

Affected Packages

Software From version Fixed in
intel-microcode — 3.20250812.0ubuntu0.25.10.1

Site Security Check

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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