CVE-2021-3507
CVE-2021-3507
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
06 May 2021Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.
Affected products
n/a · QEMU