CVE-2023-1047: A vulnerability classified as critical was found in TechPowerUp RealTemp 3.7.0.0

Routine

MEDIUM 5.3DOWNGRADE

CVE-2023-1047 is a medium-severity flaw (CVSS 5.3) affecting realtemp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability classified as critical was found in TechPowerUp RealTemp 3.7.0.0. This vulnerability affects unknown code in the library WinRing0x64.sys. The manipulation leads to improper initialization. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. VDB-221806 is the identifier assigned to this vulnerability.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-665
Published	2023-02-26
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: techpowerup

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-02-26 13:15 UTCPublished CVE record published
2026-06-17 05:26 UTCUpdated Record last modified

techpowerup realtemp DOWNGRADE

Affected: 3.7.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.7.0.0

1. Check installed version

apt-cache policy realtemp || rpm -q realtemp || realtemp --version

2. No fixed release: DOWNGRADE to a release before 3.7.0.0 (Debian / Ubuntu)

apt-cache madison realtemp sudo apt install realtemp=<VERSION_BEFORE_3.7.0.0> sudo apt-mark hold realtemp

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list realtemp sudo dnf downgrade realtemp-<VERSION_BEFORE_3.7.0.0> sudo dnf versionlock add realtemp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-1047?

realtemp: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-1047 being exploited?

CVE-2023-1047 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-1047 affect?

CVE-2023-1047 affects realtemp. Severity is medium (CVSS 5.3). A vulnerability classified as critical was found in TechPowerUp RealTemp 3.7.0.0. This vulnerability affects unknown code in the library WinRing0x64.sys. The manipulation leads to improper initialization. An attack has to be approached loca

How urgent is CVE-2023-1047?

Priority 27/100. No elevated risk signals yet.

References

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