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CVE-2022-3533

21
FAUCET Score

CVE-2022-3533 is a memory leak vulnerability in the Linux Kernel, specifically within the BPF component's parse_usdt_arg function. This issue arises from improper handling of the 'reg_name' argument and affects Linux Kernel versions. Rated as Medium severity (CVSS 5.7), this vulnerability can be exploited with low complexity by an attacker with low privileges on the adjacent network, leading to a high impact on availability. There is no impact on confidentiality or integrity. Currently, there is no evidence of active exploitation, nor is public exploit code available (Metasploit, Nuclei, ExploitDB). The vulnerability has received minimal community discussion and media coverage, indicating low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.5LOW

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 58th percentile among its peer group of 314 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 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)

redhatCVE-2022-3533Low

Kernel: memory lean in parse_usdt_arg in tools/lib/bpf/usdt.c in BPF

Oct 22, 2022
microsoft2022-Oct/CVE-2022-3533Moderate

Linux Kernel BPF usdt.c parse_usdt_arg memory leak

Oct 11, 2022

References

git.kernel.org / pub/scm/linux/kernel/git/bpf/bpf-next.git/commit
PatchVendor Advisory
vuldb.com
Permissions RequiredThird Party Advisory