CVE-2021-20181CWE-367

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0

published May 13, 2021

CVSS
—
EPSS
0%
Percentile
25.2
In the wild
Unconfirmed
What it is

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00333 · 25.2th percentile
Weakness
CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition
Published
2021-05-13T15:24Z
EPSS history
Timeline
  • 13 MAY 15:24Z
    A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0
    cvelistv5