CVE-2022-34657

Privileged information disclosure via improper input validation

Published Aug 11, 2023 · Updated Oct 2, 2024

Improper input validation in Intel PCSD BIOS before 02.01.0013 allows local users with privileged access to disclose information. Intel has not published the affected firmware locus, the input involved, or the validation operation that fails. Exploitation requires local privileged access on a listed Intel server board or server system, and the published impact is limited to information disclosure.

CVSS severity6.0
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Intel PCSD BIOS before 02.01.0013 allows local users with privileged access to disclose information. Intel has not published the affected firmware locus, the input involved, or the validation operation that fails. Exploitation requires local privileged access on a listed Intel server board or server system, and the published impact is limited to information disclosure.

The record

CVE
CVE-2022-34657
Published
Aug 11, 2023
Updated
Oct 2, 2024
Vendor
Topcon Positioning Systems, Inc.
Product
Intel PCSD BIOS
Classifications
CWE-20
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Aug 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2024Record 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=before version 02.01.0013

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Topcon Positioning Systems, Inc. · Intel PCSD BIOSversion=before version 02.01.0013

Published CVSS scores

4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
6.0Intel CorporationCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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-20Improper Input Validation

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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