CVE-2022-23823
No known exploitation. EPSS puts it in the 66th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to potentially enable information disclosure.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
1.2% chance of exploitation activity in the next 30 days, which ranks it in the 66th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
6 events over 1471 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified, att&ck mapped
Affected products
- AMD ProcessorsHardware Firmware
- athlon x4 750 firmwareHardware Firmware
- athlon x4 760k firmwareHardware Firmware
- athlon x4 830 firmwareHardware Firmware
- athlon x4 835 firmwareHardware Firmware
- athlon x4 840 firmwareHardware Firmware
- athlon x4 845 firmwareHardware Firmware
- athlon x4 860k firmwareHardware Firmware
- 1st Gen AMD EPYCHardware Firmware
- 2nd Gen AMD EPYCHardware Firmware
- AMD Ryzen 2000 series DesktopHardware Firmware
- AMD Ryzen 3000 Series DesktopHardware Firmware
- AMD Ryzen 4000 Series Desktop processors with Radeon graphicsHardware Firmware
- 2nd Gen AMD Ryzen ThreadripperHardware Firmware
- 3rd Gen AMD Ryzen ThreadripperHardware Firmware
- AMD Ryzen Threadripper PRO processorsHardware Firmware
And 144 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Scored 6.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity NoneNo integrity impact
- Availability NoneNo availability impact
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
- amd.com/en/corporate/product-security/bulletin/amd-sb-1038&
- nvd.nist.gov/vuln/detail/CVE-2022-23823&
- bugzilla.redhat.com/show_bug.cgi?id=2097181&
And 6 more references. See all after sign-in
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