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CVE-2022-0850

24
FAUCET Score

CVE-2022-0850 is an information leak vulnerability in the Linux kernel's ext4 filesystem, specifically within the ext4_extent_header, which can expose sensitive data to userspace. This vulnerability has a CVSS score of 7.1 (High), indicating that a local attacker with low privileges can exploit it with low attack complexity to achieve high confidentiality impact and high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.276CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.5, < 4.9.276CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.240CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.198CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.132CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 73rd percentile among its peer group of 17,070 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

microsoftpatch availablevia msrc
Product: 18610-16820Fixed in: 5.10.144.1-1
microsoftpatch availablevia msrc
Product: 17832-16823Fixed in: 5.15.126.1-1
microsoftpatch availablevia msrc
Product: cm1 kernel 5.10.144.1-1 on CBL Mariner 1.0Fixed in: 5.10.144.1-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.126.1-1 on CBL Mariner 2.0Fixed in: 5.15.126.1-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt-0:4.18.0-372.9.1.rt7.166.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-372.9.1.el8
View patch

Vendor Advisories (2)

microsoft2022-Aug/CVE-2022-0850Important

A vulnerability was found in linux kernel where an information leak occurs via ext4_extent_header to userspace.

Aug 9, 2022
redhatCVE-2022-0850Moderate

kernel: information leak in copy_page_to_iter() in iov_iter.c

May 6, 2021

References

access.redhat.com / security/cve/CVE-2022-0850
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
git.kernel.org / pub/scm/linux/kernel/git/torvalds/linux.git/commit
Mailing ListPatchVendor Advisory
syzkaller.appspot.com / bug
ExploitMailing ListThird Party Advisory