# Failure to validate the length fields of the ASP (AMD Secure Processor) sensor fusion hub headers may allow an attacker with a malicious Uapp or ABL to map the ASP sensor fusion hub region and overwr… CVE record · `CVE-2021-46753` - **Identifiers:** `CVE-2021-46753` - **State:** Confirmed - **Severity:** CVSS 9.1 Critical - **Critical:** Yes: CVSS 9+ - **CNA:** AMD - **Technologies:** [AMD Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4](https://agentprime.io/advisories/technology/amd-ryzentm-2000-series-desktop-processors-raven-ridge-am4.md) · [AMD Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-desktop-processor-with-radeontm-graphics-cezanne-am4.md) · [AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP](https://agentprime.io/advisories/technology/amd-athlontm-3000-series-mobile-processors-with-radeontm-graphics-dali-dali-ulp.md) · [AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”](https://agentprime.io/advisories/technology/amd-athlontm-3000-series-mobile-processors-with-radeontm-graphics-pollock.md) · [AMD Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5](https://agentprime.io/advisories/technology/amd-ryzentm-2000-series-mobile-processors-raven-ridge-fp5.md) · [Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”](https://agentprime.io/advisories/technology/ryzentm-3000-series-mobile-processor-2nd-gen-amd-ryzentm-mobile-processors-with.md) · [AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”](https://agentprime.io/advisories/technology/amd-ryzentm-3000-series-mobile-processors-with-radeontm-graphics-renoir.md) · [AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-mobile-processors-with-radeontm-graphics-lucienne.md) · [AMD Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-mobile-processors-with-radeontm-graphics-cezanne.md) · [AMD Ryzen™ 6000 Series Mobile Processors "Rembrandt"](https://agentprime.io/advisories/technology/amd-ryzentm-6000-series-mobile-processors-rembrandt.md) - **Published:** 9 May 2023 - **Updated:** 28 Jan 2025 - **Reviewed by a person:** No Published by the CVE Program (CNA: AMD) at 9 May 2023, 19:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Critical Critical, because: - CVSS score 9.1: 9.0 or more. How we decide what’s critical: ## Affected products, as the CNA wrote them - Vendor: AMD. Product: Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”. - affected: `various` - Other versions: unaffected - Package name: `AGESA` - Vendor: AMD. Product: Ryzen™ 6000 Series Mobile Processors "Rembrandt". - affected: `various` - Other versions: unaffected - Package name: `AGESA` ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 9.1 Critical, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`, from ADP (CISA-ADP) - **CISA KEV:** Not listed. - **EPSS:** 0.0056, the 46th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 9 May 2023. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2021-46753](https://www.cve.org/CVERecord?id=CVE-2021-46753) - [NVD: CVE-2021-46753](https://nvd.nist.gov/vuln/detail/CVE-2021-46753) ### References from the CNA - (vendor-advisory) Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .