How severe is CVE-2023-31305?

CVE-2023-31305 has a CVSS 3.x base score of 1.9, rated low severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-31305 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-31305?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-31305 have an EU (EUVD) identifier?

Yes. CVE-2023-31305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35616.

When was CVE-2023-31305 published?

CVE-2023-31305 was published on 2024-08-13 and last updated on 2026-06-17.

CVE-2023-31305

CVE-2023-31305 is a low-severity vulnerability with a CVSS 3.x base score of 1.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-338.

Key facts

Severity: Low (CVSS 3.x base score 1.9)
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-35616
Weakness: CWE-338
Published: 2024-08-13
Last modified: 2026-06-17

Description

Generation of weak and predictable Initialization Vector (IV) in PMFW (Power Management Firmware) may allow an attacker with privileges to reuse IV values to reverse-engineer debug data, potentially resulting in information disclosure.

Frequently asked questions

What is CVE-2023-31305?: Generation of weak and predictable Initialization Vector (IV) in PMFW (Power Management Firmware) may allow an attacker with privileges to reuse IV values to reverse-engineer debug data, potentially resulting in information disclosure.
How severe is CVE-2023-31305?: CVE-2023-31305 has a CVSS 3.x base score of 1.9, rated low severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-31305 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-31305?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-31305 have an EU (EUVD) identifier?: Yes. CVE-2023-31305 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35616.
When was CVE-2023-31305 published?: CVE-2023-31305 was published on 2024-08-13 and last updated on 2026-06-17.

References

https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6005.html

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