CVE-2021-26312
What it is
Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-665
- Record status
- Modified
Affected
- Amd Epyc 7601 Firmware < naplespi-sp3_1.0.0.g
- Amd Epyc 7551p Firmware < naplespi-sp3_1.0.0.g
- Amd Epyc 7551 Firmware < naplespi-sp3_1.0.0.g
- Amd Epyc 7501 Firmware < naplespi-sp3_1.0.0.g
- Amd Epyc 7451 Firmware < naplespi-sp3_1.0.0.g
- Amd Epyc 7401 Firmware < naplespi-sp3_1.0.0.g
- Amd Epyc 7371 Firmware < naplespi-sp3_1.0.0.g
- Amd Epyc 7351p Firmware < naplespi-sp3_1.0.0.g
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2021-26312.md and follow it. Check whether this project is affected by CVE-2021-26312. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
