Is CVE-2022-0847 exploitable?

Yes — CVE-2022-0847 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it is confirmed exploited in the wild.

Is CVE-2022-0847 a false positive?

No practitioners have marked CVE-2022-0847 a false positive so far (2 verdicts).

How do I remediate CVE-2022-0847?

Practitioners have shared remediation steps for CVE-2022-0847 — see the remediation notes on this page.

CVE-2022-0847

is CVE-2022-0847real, exploitable, or a false positive? Here's the community ground truth.

☆ Watch

High · CVSS 7.8EPSS 89.1%CISA KEVCWE-665

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

References

NVD MITRE CVE.org CISA KEV

Published Mar 10, 2022

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Community ground truth

Community verdict

2 verdicts

Not a real issue

Includes TruePositive's curated baseline from public sources — community verdicts accrue on top.

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Community real-world severity: High (High 2) — CVSS base score 7.8

In line with its CVSS base score.

Field notes & remediation

Verdicts are the quick signal — notes are the evidence and fixes behind them.

0
Field note · Tomáš NovákCurated
Linux Kernel Privilege Escalation Vulnerability — Linux kernel contains an improper initialization vulnerability where an unprivileged local user could escalate their privileges on the system. This vulnerability has the moniker of "Dirty Pipe." Listed in the CISA KEV catalog (added 2022-04-25) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~89%. Treat it as real and prioritize remediation over triage.
0
Remediation · Lin WeiCurated
Required action for Linux Kernel: Apply updates per vendor instructions. CISA set a federal remediation due date of 2022-05-16. After patching, verify the vulnerable path is no longer reachable before closing the finding.