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CVE-2024-49974

17
FAUCET Score

CVE-2024-49974 addresses a denial-of-service (DoS) vulnerability in the Linux kernel's NFS daemon (NFSD). Unrestricted asynchronous COPY operations could allow clients to initiate numerous long-running copy tasks, consuming system resources and potentially leading to a DoS. The vulnerability has been patched by implementing a per-namespace limit on concurrent background COPY operations. Rated as MEDIUM severity with a CVSS score of 5.5, this vulnerability requires local access and low privileges (AV:L/PR:L) to exploit, with no user interaction needed (UI:N). The primary impact is high availability loss (A:H), as successful exploitation could render the NFS server unresponsive. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.10.14CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.11, < 6.11.3CPE 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
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 75th 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

Patch Available

Vendor Patches (17)

autodeskpatch availablevia llm_extracted
View patch
codesyspatch availablevia llm_extracted
View patch
esphomepatch availablevia llm_extracted
View patch
freepbxpatch availablevia llm_extracted
View patch
honeywellpatch availablevia llm_extracted
View patch
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.182.1-1 on CBL Mariner 2.0
microsoftpatch availablevia msrc
Product: 17110-16823Fixed in: 5.15.176.3-1
microsoftpatch availablevia msrc
Product: 17501-17084Fixed in: 6.6.64.2-9
microsoftpatch availablevia msrc
Product: 19529-17084
microsoftpatch availablevia msrc
Product: 19682-17086
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.176.3-1 on CBL Mariner 2.0Fixed in: 5.15.176.3-1
microsoftpatch availablevia msrc
Product: azl3 kernel 6.6.64.2-9 on Azure Linux 3.0Fixed in: 6.6.64.2-9
microsoftpatch availablevia msrc
Product: azl3 kernel 6.6.92.2-1 on Azure Linux 3.0
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-570.12.1.el9_6
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel

Vendor Advisories (7)

autodeskllm-autodesk-c365b674a2ff5a3aCRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
honeywellllm-honeywell-c82b5cfda9df97a3CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
freepbxllm-freepbx-e54908c7967265f6CRITICAL

HP ThinPro 8.1 SP8 Security Updates

Oct 27, 2025
esphomellm-esphome-ed450ce9fd6a7380CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
codesysllm-codesys-fe85e88fbae25bb9CRITICAL

HP ThinPro 8.1 SP7 Security Updates

Jun 3, 2025
redhatCVE-2024-49974Moderate

kernel: NFSD: Limit the number of concurrent async COPY operations

Oct 21, 2024
microsoft2024-Oct/CVE-2024-49974Moderate

NFSD: Limit the number of concurrent async COPY operations

Oct 8, 2024

References

git.kernel.org / stable/c/43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf
git.kernel.org / stable/c/6a488ad7745b8f64625c6d3a24ce7e448e83f11b
Patch
git.kernel.org / stable/c/7ea9260874b779637aff6d24c344b8ef4ac862a0
git.kernel.org / stable/c/9e52ff544e0bfa09ee339fd7b0937ee3c080c24e
git.kernel.org / stable/c/aadc3bbea163b6caaaebfdd2b6c4667fbc726752
Patch
git.kernel.org / stable/c/ae267989b7b7933dfedcd26468d0a88fc3a9da9e
git.kernel.org / stable/c/b4e21431a0db4854b5023cd5af001be557e6c3db
Patch
lists.debian.org / debian-lts-announce/2025/01/msg00001.html
lists.debian.org / debian-lts-announce/2025/03/msg00002.html