CVE-2022-30539

Privilege escalation via BIOS use-after-free

Published Feb 16, 2023 · Updated Jan 27, 2025

Use-after-free in Intel 3rd Gen Xeon Scalable BIOS firmware allows local users to escalate privileges on affected servers. Intel identifies the BIOS firmware as the affected component but has not disclosed the freed object, triggering operation, or lifetime error. Exploitation requires existing high privileges and local access, and successful exploitation crosses a security boundary with confidentiality, integrity, and availability impact.

CVSS severity7.5
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Intel 3rd Gen Xeon Scalable BIOS firmware allows local users to escalate privileges on affected servers. Intel identifies the BIOS firmware as the affected component but has not disclosed the freed object, triggering operation, or lifetime error. Exploitation requires existing high privileges and local access, and successful exploitation crosses a security boundary with confidentiality, integrity, and availability impact.

The record

CVE
CVE-2022-30539
Published
Feb 16, 2023
Updated
Jan 27, 2025
Vendor
Topcon Positioning Systems, Inc.
Product
3rd Gen Intel Xeon Scalable Processors
Classifications
CWE-416, T1068
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 16, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=See references

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · 3rd Gen Intel Xeon Scalable Processorsversion=See references

Published CVSS scores

7.5Intel CorporationCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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