HOMEVULNERABILITIESCVE-2022-41222
HIGH

CVE-2022-41222

CWE-416Published: September 21, 2022· Updated: Jun 17, 2026

7.0
CVSS v3.1

Official Description

mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.

NVD Source

Technical Analysis

CVE-2022-41222 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.0.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Linux1 product(s)
linux kernel
netapp1 product(s)
hci baseboard management controller
Source: NVD CPE · 10 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (14)

https://bugs.chromium.org/p/project-zero/issues/detail?id=2347Exploit · Issue Tracking · Mailing List · Patch · Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=2347Exploit · Issue Tracking · Mailing List · Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2022-41222
CVSS Score7.0 / 10
SeverityHIGH
WeaknessCWE-416
CISA KEVNo
Affected4 vendor(s)
PublishedSep 21, 2022

Related CVEs (CWE-416)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2022-41222 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.