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CVE-2022-49658

17
FAUCET Score

CVE-2022-49658 is a vulnerability in the Linux kernel's BPF verifier, specifically in the adjust_scalar_min_max_vals function. It allows for insufficient bounds propagation, leading to the potential leakage of pointers by incorrectly turning a pointer register into an unknown scalar. This affects Linux kernel versions. The vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low attack complexity. A successful exploit could lead to a high impact on availability, though confidentiality and integrity impacts are none. Currently, there is no evidence of active exploitation, and no public exploit code or Metasploit/Nuclei modules are available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.14, < 5.10.130CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.54CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.18.11CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
5.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 76th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49658Moderate

kernel: bpf: Fix insufficient bounds propagation from adjust_scalar_min_max_vals

Feb 26, 2025

References

git.kernel.org / stable/c/3844d153a41adea718202c10ae91dc96b37453b5
Patch
git.kernel.org / stable/c/a7de8d436db92bab8b1f44624297c2554a6ac36b
Patch
git.kernel.org / stable/c/b2a28bb36664c94375926cbbb91976242847699d
Patch
git.kernel.org / stable/c/e917be1f83ea14a68b3cf64d3da9968eaf991dae
Patch