CVSS v3
7.8
HIGH
EPSS Score
83.4%
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
Yes. CVE-2022-0847 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 5/16/2022.
CVE-2022-0847 has a CVSS v3 base score of 7.8 (HIGH severity).
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Ranked by exploit probability (EPSS).