Guest VM PCIe Buffer Overrun Enables Host DoS
CVE-2024-21961 Published on February 12, 2026

Improper restriction of operations within the bounds of a memory buffer in PCIe® Link could allow an attacker with access to a guest virtual machine to potentially perform a denial of service attack against the host resulting in loss of availability.

NVD

Weakness Type

What is a Buffer Overflow Vulnerability?

The software performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.

CVE-2024-21961 has been classified to as a Buffer Overflow vulnerability or weakness.


Affected Versions

AMD EPYC™ 7002 Series Processors: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics: AMD Ryzen™ 7000 Series Desktop Processors: AMD Ryzen™ 5000 Series Desktop Processors: AMD Ryzen™ 3000 Series Desktop Processors: AMD Ryzen™ Z1 Series Processors: AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics: AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics: AMD Ryzen™ 8000 Series Desktop Processors: AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics: AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics: AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics: AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics: AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics: AMD Ryzen™ 4000 Series Desktop Processors: AMD Ryzen™ Z2 Series Processors: AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics: AMD EPYC™ Embedded 7002 Series Processors: AMD Ryzen™ Embedded 5000 Series Processors: AMD Ryzen™ Embedded V2000 Series Processors: AMD Ryzen™ Embedded V3000 Series Processors: AMD Ryzen™ Embedded 8000 Series Processors: AMD Ryzen™ Embedded 7000 Series Processors:

Exploit Probability

EPSS
0.02%
Percentile
4.06%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.