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CVE-2022-49280

17
FAUCET Score

CVE-2022-49280 addresses an integer underflow vulnerability within the Linux kernel's NFS daemon (NFSD) in the nfssvc_decode_writeargs() function. This flaw, categorized as CWE-191, specifically impacts Linux kernel versions by allowing a malicious local attacker to potentially cause a denial of service (DoS). With a CVSS score of 5.5 (MEDIUM), the vulnerability requires local access and low privileges (AV:L/PR:L), but does not necessitate user interaction (UI:N). While it primarily affects availability (A:H), there is no impact on confidentiality or integrity. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating low public awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.311CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.276CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.238CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.189CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.110CPE 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
18.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 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-2022-49280Moderate

kernel: NFSD: prevent underflow in nfssvc_decode_writeargs()

Feb 26, 2025

References

git.kernel.org / stable/c/184416d4b98509fb4c3d8fc3d6dc1437896cc159
Patch
git.kernel.org / stable/c/2764af8ce0bf03cc43ee4a11897cab96bde6caae
Patch
git.kernel.org / stable/c/413d8fefafe531a9442bb623e3fe292a38f88d65
Patch
git.kernel.org / stable/c/614a61e1592051cc42d3c38f899c9f7bdaad8a1d
Patch