CVE-2023-31305: Weak RNG (CVSS 1.9)

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.

Is your site exposed to CVE-2023-31305?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

1.9

LOW

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-338 CWE-338

References

Other References

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

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. It has a CVSS v3.1 base score of 1.9 (LOW).

How severe is CVE-2023-31305? +

CVE-2023-31305 has a CVSS v3.1 score of 1.9 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

How do I check if I'm vulnerable to CVE-2023-31305? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-111260

The Jakarta Security OpenID Connect authentication mechanism generates the state and nonce values with a non-cryptographic random number generator and …

CVE-2026-118986

CallBackery versions before 0.62.0 for Perl allow session cookie forgery via a signing secret generated with rand(). The secret that …

CVE-2026-42155

Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform …

CVE-2025-26379

Use of a weak pseudo-random number generator, which may allow an attacker to read or inject encrypted PowerG packets.

CVE-2026-8169

ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using …

CVE-2026-111259

The embedded server generates HTTP session identifiers with a non-cryptographic random number generator by default. A remote attacker who observes …