CVE-2025-22834: AMI APTIOV contains a vulnerability in BIOS where a user may cause “Improper Initialization” by local accessin

Q: How do I fix CVE-2025-22834?

aptio v: upgrade to 5.040. Exact commands for each OS are on this page.

Q: Is CVE-2025-22834 being exploited?

CVE-2025-22834 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-22834 affect?

CVE-2025-22834 affects aptio v. Severity is medium (CVSS 4.2). AMI APTIOV contains a vulnerability in BIOS where a user may cause “Improper Initialization” by local accessing. Successful exploitation of this vulnerability may leave the resource in an unexpected state and potentially impact confidential

Q: How urgent is CVE-2025-22834?

Priority 15/100. No elevated risk signals yet.

Routine

MEDIUM 4.2UPGRADE

CVE-2025-22834 is a medium-severity flaw (CVSS 4.2) affecting aptio v. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

AMI APTIOV contains a vulnerability in BIOS where a user may cause “Improper Initialization” by local accessing. Successful exploitation of this vulnerability may leave the resource in an unexpected state and potentially impact confidentiality, integrity, and availability.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.2 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.1% (top 98%)
CISA exploited list	No
Weakness	CWE-665
Published	2025-08-12
Last modified	2026-06-17

Publisher (CNA): AMI · Vendor: ami

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-12 14:15 UTCPublished CVE record published
2026-06-17 08:50 UTCUpdated Record last modified

ami aptio v UPGRADE

Affected: >= 5.0 and < 5.040

Fixed in: 5.040

Safe to downgrade to: a release before 5.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-22834?

aptio v: upgrade to 5.040. Exact commands for each OS are on this page.

Is CVE-2025-22834 being exploited?

CVE-2025-22834 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-22834 affect?

CVE-2025-22834 affects aptio v. Severity is medium (CVSS 4.2). AMI APTIOV contains a vulnerability in BIOS where a user may cause “Improper Initialization” by local accessing. Successful exploitation of this vulnerability may leave the resource in an unexpected state and potentially impact confidential

How urgent is CVE-2025-22834?

Priority 15/100. No elevated risk signals yet.

Related CVEs

CVE-2025-22831 HIGH 7.8 UPGRADE APTIOV contains a vulnerability in BIOS where an attacker may cause an Out-of-bounds Write by local
CVE-2025-22832 HIGH 7.8 UPGRADE APTIOV contains a vulnerability in BIOS where an attacker may cause an Out-of-bounds Write by local
CVE-2025-33044 HIGH 7.8 UPGRADE APTIOV contains a vulnerability in BIOS where an attacker may cause an Improper Restriction of Operations with
CVE-2025-22833 HIGH 7.3 UPGRADE APTIOV contains a vulnerability in BIOS where an attacker may cause a Buffer Copy without Checking Size of Inp
CVE-2025-58770 HIGH 8.8 UPGRADE APTIOV contains a vulnerability in BIOS where a user may cause “Improper Handling of Insufficient Permissions

References

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