CVE-2022-25477Public exploit

Kernel-address disclosure via world-readable driver logs

Published Jul 2, 2024 · Updated Jul 9, 2026

Information disclosure in Realtek RtsPer and RtsUer card-reader drivers allows local users to read kernel object addresses. The drivers keep plaintext cyclic logs enabled by default and return them through IOCTL_GET_LOG on a device object accessible to everyone. Low-privilege access is sufficient in RtsPer.sys before 10.0.22000.21355 and RtsUer.sys before 10.0.22000.31274; the leak weakens KASLR without directly altering data or availability.

CVSS severity5.5
Medium
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

Information disclosure in Realtek RtsPer and RtsUer card-reader drivers allows local users to read kernel object addresses. The drivers keep plaintext cyclic logs enabled by default and return them through IOCTL_GET_LOG on a device object accessible to everyone. Low-privilege access is sufficient in RtsPer.sys before 10.0.22000.21355 and RtsUer.sys before 10.0.22000.31274; the leak weakens KASLR without directly altering data or availability.

The record

CVE
CVE-2022-25477
Published
Jul 2, 2024
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-532, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5NVDCVSS: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1005Data from Local System

Public exploit references

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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