CVE-2021-26338
HIGHCVSS 7.5/10EPSS 0.90%
Last modified
CVE-2021-26338 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.
Description
Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amd | Epyc 7f72 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7f52 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7f32 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7h12 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7742 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7702 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7702p Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7662 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7642 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7552 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7542 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7532 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7502 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7502p Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7452 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7402 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7402p Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7352 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7302 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7302p Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7282 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7272 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7262 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7252 Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7232p Firmware | < romepi-sp3_1.0.0.c |
| Amd | Epyc 7763 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7713p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7713 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7663 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7643 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 75f3 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7543p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7543 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7513 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7453 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 74f3 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7443p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7443 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7413 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 73f3 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7343 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7313p Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 7313 Firmware | < milanpi-sp3_1.0.0.4 |
| Amd | Epyc 72f3 Firmware | < milanpi-sp3_1.0.0.4 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26338?
Improper access controls in System Management Unit (SMU) may allow for an attacker to override performance control tables located in DRAM resulting in a potential lack of system resources.
How severe is CVE-2021-26338?
CVE-2021-26338 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26338?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
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Are you affected by CVE-2021-26338?
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Scan your code nowSource: NVD / NIST