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Fencer Vulns
low 1.9

CVE-2023-31305 json

Generation of weak and predictable Initialization Vector (IV) in PMFW (Power Management Firmware) may allow an attacker with privileges to…

published 2024-08-13 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-35616

cvss
1.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

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.

Patch / fix

  • AMD AMD Radeon™ RX 6000 Series Graphics Cards AMD Software: Adrenalin Edition 23.12.1 (23.30.13.01)
  • AMD AMD Radeon™ PRO W6000 Series Graphics Cards AMD Software: PRO Edition 23.Q4 (23.30.13.03)

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 1.9 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N

Affected products

  • AMD AMD Radeon™ RX 6000 Series Graphics Cards
  • AMD AMD Radeon™ PRO W6000 Series Graphics Cards

Classification

Weakness
  • CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.