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CVE-2022-44033

23
FAUCET Score

CVE-2022-44033 is a race condition leading to a use-after-free vulnerability in the Linux kernel (through version 6.0.6), specifically within the cm4040_cs.c driver. This flaw affects Linux kernel products and can be triggered if a physically proximate attacker removes a PCMCIA device during the open() call. Rated 6.4 MEDIUM, it requires physical access (AV:P) and high attack complexity (AC:H), but could lead to high confidentiality, integrity, and availability impacts (C:H/I:H/A:H). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.0.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.5
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.32%
Probability of exploitation in next 30 days
EPSS Percentile
24.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 60th percentile among its peer group of 152 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia msrc
Product: 17823-16820Fixed in: 5.10.188.1-1
microsoftpatch availablevia msrc
Product: 17824-16823Fixed in: 5.15.122.1-2
microsoftpatch availablevia msrc
Product: cm1 kernel 5.10.188.1-1 on CBL Mariner 1.0Fixed in: 5.10.188.1-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.122.1-2 on CBL Mariner 2.0Fixed in: 5.15.122.1-2

Vendor Advisories (2)

microsoft2022-Oct/CVE-2022-44033Moderate

An issue was discovered in the Linux kernel through 6.0.6. drivers/char/pcmcia/cm4040_cs.c has a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling open() aka a race condition between cm4040_open() and reader_detach().

Oct 11, 2022
redhatCVE-2022-44033Moderate

Kernel: A race condition between cm4040_open() and reader_detach() may result in UAF

Sep 18, 2022

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
lore.kernel.org / lkml/20220915020834.GA110086%40ubuntu
lore.kernel.org / lkml/20220919040457.GA302681%40ubuntu