CVE-2021-26322
Persistent platform private key may not be protected with a random IV leading to a potential “two...
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
- Record
CVE-2021-26322- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-320, CWE-330
- Updated
- 2026-11-02
CVE List No score
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
- Record
CVE-2021-26322- Weakness
- CWE-320
- Updated
- 2026-11-02
EUVDEUVD-2021-13128 No score
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
- Record
EUVD-2021-13128- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q556-rcvc-qq2m
Persistent platform private key may not be protected with a random IV leading to a potential “two...
Persistent platform private key may not be protected with a random IV leading to a potential “two time pad attack”.
- Record
GHSA-q556-rcvc-qq2m- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-330
- Updated
- 2026-11-02
Affected products
- amd 1st gen amd epyc™
- amd 2nd gen amd epyc™
- amd 3rd gen amd epyc™
- amd epyc 7232p firmware
- amd epyc 7251 firmware
- amd epyc 7252 firmware
- amd epyc 7261 firmware
- amd epyc 7262 firmware
- amd epyc 7272 firmware
- amd epyc 7281 firmware
- amd epyc 7282 firmware
- amd epyc 72f3 firmware
Show 48 moreShow less
- amd epyc 7301 firmware
- amd epyc 7302 firmware
- amd epyc 7302p firmware
- amd epyc 7313 firmware
- amd epyc 7313p firmware
- amd epyc 7343 firmware
- amd epyc 7351 firmware
- amd epyc 7351p firmware
- amd epyc 7352 firmware
- amd epyc 7371 firmware
- amd epyc 73f3 firmware
- amd epyc 7401 firmware
- amd epyc 7402 firmware
- amd epyc 7402p firmware
- amd epyc 7413 firmware
- amd epyc 7443 firmware
- amd epyc 7443p firmware
- amd epyc 7451 firmware
- amd epyc 7452 firmware
- amd epyc 7453 firmware
- amd epyc 74f3 firmware
- amd epyc 7501 firmware
- amd epyc 7502 firmware
- amd epyc 7502p firmware
- amd epyc 7513 firmware
- amd epyc 7532 firmware
- amd epyc 7542 firmware
- amd epyc 7543 firmware
- amd epyc 7543p firmware
- amd epyc 7551 firmware
- amd epyc 7551p firmware
- amd epyc 7552 firmware
- amd epyc 75f3 firmware
- amd epyc 7601 firmware
- amd epyc 7642 firmware
- amd epyc 7643 firmware
- amd epyc 7662 firmware
- amd epyc 7663 firmware
- amd epyc 7702 firmware
- amd epyc 7702p firmware
- amd epyc 7713 firmware
- amd epyc 7713p firmware
- amd epyc 7742 firmware
- amd epyc 7763 firmware
- amd epyc 7f32 firmware
- amd epyc 7f52 firmware
- amd epyc 7f72 firmware
- amd epyc 7h12 firmware
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-26322 is a high vulnerability (CVSS 7.5) in Amd 1st Gen Amd Epyc™, published November 16, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.05%, the 64th percentile. No source names a fixed version.