Actively exploited · CISA KEV · NVD published 2022-03-10
Actively exploitedCVE-2022-0847
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.
- First PoC
- 1539 days →Metasploit
- 145 days →First cited attacker
Signals
- Exploited in the wild
- Yesadded 2022-04-25 · due 2022-05-16. An observation, not a forecast.
- EPSS · 30-day forecast
- 93%Chance of exploitation in the next 30 days, 100th percentile of all CVEs. A forecast; KEV outranks it.
- CVSS · NVD · HIGH
- 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Internet exposure
- not stated by sourcesNo exposure census on this CVE's dispatches.
Exploits
2 known · links onlyMetasploit1
This exploit targets a vulnerability in the Linux kernel since 5.8, that allows writing of read only or immutable memory. The vulnerability was fixed in Linux 5.16.11, 5.15.25 and 5.10.102. The module exploits this vulnerability by overwriting a suid binary with the payload, executing it, and then writing the original data back. There are two major limitations of this exploit: the offset cannot be on a page boundary (it needs to write
ruby · seen 2026-10-18
Exploit-DB1
created 2022-03-08
On the wire
0 dispatchesNo dispatch on our wire has named this CVE yet.
Watch this one?
KEV additions reach Telegram and the KEV-only RSS as they land.
Check your stack
Paste what you run: the CVEs exploited in the wild against it, and who is cited as exploiting them, with the report.
Stack checkNo key. No signup.