CVE-2023-20516 — Improper handling of insufficiency privileges in the ASP could allow a privilege

Improper handling of insufficiency privileges in the ASP could allow a privileged attacker to modify Translation Map Registers (TMRs) potentially resulting in loss of confidentiality or integrity.

01What is this vulnerability?

Improper handling of insufficiency privileges in the ASP could allow a privileged attacker to modify Translation Map Registers (TMRs) potentially resulting in loss of confidentiality or integrity.

02Affected products

Vendor	Product	Versions
AMD	AMD Instinct™ MI250	ROCm 6.3
AMD	AMD Instinct™ MI210	ROCm 6.3
AMD	AMD Radeon™ Instinct™ MI25 Graphics Products	Contact your AMD Customer Engineering representative
AMD	AMD Radeon™ PRO V520 Graphics Products	Contact your AMD Customer Engineering representative
AMD	AMD Radeon™ PRO V620 Graphics Products	Contact your AMD Customer Engineering representative

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-09-06T16:13:36.336Z
• Last modified: 2025-09-08T13:42:33.903Z

09References

• www.amd.com — https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html