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CVE-2022-49449

17
FAUCET Score

CVE-2022-49449 is a null-pointer dereference vulnerability in the Linux kernel's pinctrl subsystem, specifically affecting the Renesas RZN1 driver. This flaw could lead to a system crash (denial of service) if an attacker with local user privileges triggers the condition. The vulnerability has a CVSS score of 5.5 (Medium) due to its local attack vector and high impact on availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.10.121CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.46CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.17.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.18, < 5.18.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
18.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 73rd 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 Advisories (1)

redhatCVE-2022-49449Moderate

kernel: pinctrl: renesas: rzn1: Fix possible null-ptr-deref in sh_pfc_map_resources()

Feb 26, 2025

References

git.kernel.org / stable/c/01f9e02e0f13df3fd291676dc80054e977be1601
Patch
git.kernel.org / stable/c/2f661477c2bb8068194dbba9738d05219f111c6e
Patch
git.kernel.org / stable/c/34c719b8fdfbd0c7c54cae56e6b0f16e9f8bf03e
Patch
git.kernel.org / stable/c/b646e0cfeb38bf5f1944fd548f1dfa9b129fa00c
Patch
git.kernel.org / stable/c/c16b59d445135c8026a04e388d8b2762feaa3b3b
Patch