CVE-2023-1048Public exploit

Local kernel-code execution via improperly initialized driver

Published Feb 26, 2023 · Updated Aug 2, 2024

Improper initialization in WinRing0x64.sys in TechPowerUp DRAM Calculator for Ryzen 1.2.0.5 allows local users to execute kernel code. The public record does not identify which driver state is left uninitialized or how attacker-controlled input reaches it. A low-privileged local session is required, and successful exploitation grants arbitrary kernel execution.

CVSS severity7.8
High
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper initialization in WinRing0x64.sys in TechPowerUp DRAM Calculator for Ryzen 1.2.0.5 allows local users to execute kernel code. The public record does not identify which driver state is left uninitialized or how attacker-controlled input reaches it. A low-privileged local session is required, and successful exploitation grants arbitrary kernel execution.

The record

CVE
CVE-2023-1048
Published
Feb 26, 2023
Updated
Aug 2, 2024
Vendor
TechPowerUp
Product
DRAM Calculator for Ryzen
Classifications
CWE-665, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 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=1.2.0.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

TechPowerUp · DRAM Calculator for Ryzenversion=1.2.0.5

Published CVSS scores

5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.3VulDBCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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 exploitPublished

Weakness, pattern, technique

CWE-665Improper Initialization
T1068Exploitation for Privilege Escalation

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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