Out-of-bounds Read in AMD 3rd Gen Ryzen™ Threadripper™ Processors “Castle Peak” Hedt
CVE-2021-46749
Insufficient bounds checking in ASP (AMD Secure Processor) may allow for an out of bounds read in SMI (System Management Interface) mailbox checksum calculation triggering a data abort, resulting in a potential denial of service.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- AMD 3rd Gen Ryzen™ Threadripper™ Processors “Castle Peak” Hedt — versions various
- AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” Am4 — versions various
- AMD Athlon Gold 3150g
- AMD Athlon Gold 3150ge
- AMD Athlon Gold 3150ge Firmware — versions picassopi-fp5_1.0.0.e, pollockpi-ft5_1.0.0.4
- AMD Athlon Gold 3150g Firmware — versions picassopi-fp5_1.0.0.e, pollockpi-ft5_1.0.0.4
- AMD Athlon Silver 3050ge
- AMD Athlon Silver 3050ge Firmware — versions picassopi-fp5_1.0.0.e, pollockpi-ft5_1.0.0.4
- AMD Athlon™ 3000 Series Mobile Processors With Radeon™ Graphics “Dali”/”dali” Ulp — versions various
- AMD Athlon™ 3000 Series Mobile Processors With Radeon™ Graphics “Pollock” — versions various
Weakness classification (CWE)
References
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-46749?
- CVE-2021-46749 is a high-severity vulnerability in AMD 3rd Gen Ryzen™ Threadripper™ Processors “Castle Peak” Hedt, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2023-05-09.
- How severe is CVE-2021-46749?
- High severity. CVSS v3 base score is 7.5 out of 10.