CVE-2023-32831

Local information disclosure via predictable WLAN PIN

Published Jan 2, 2024 · Updated Jun 18, 2025

Insufficient randomness in MediaTek WLAN driver SDK 7.6.7.1 and earlier allows local users to disclose information by cracking its PIN. The WLAN driver creates the security PIN from insufficiently random values, making the PIN predictable enough to crack. Low-privileged local access is required, while exploitation needs no user interaction and affects confidentiality only.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient randomness in MediaTek WLAN driver SDK 7.6.7.1 and earlier allows local users to disclose information by cracking its PIN. The WLAN driver creates the security PIN from insufficiently random values, making the PIN predictable enough to crack. Low-privileged local access is required, while exploitation needs no user interaction and affects confidentiality only.

The record

CVE
CVE-2023-32831
Published
Jan 2, 2024
Updated
Jun 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-330, T1110
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 18, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-330Use of Insufficiently Random Values
T1110Brute Force

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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