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NVD / CVE Program· CNA Linux

CVE-2024-46697: nfsd: ensure that nfsd4_fattr_args.context is zeroed out

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.41% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux dd65b324174a64558a16ebbf4c3266e5701185d0, f58bab6fd4063913bd8321e99874b8239e9ba726.
  • Severity is disputed: the assigning authority (CNA) scores it 9.8, NVD 5.5.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux dd65b324174a64558a16ebbf4c3266e5701185d0, f58bab6fd4063913bd8321e99874b8239e9ba726 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4_fattr_args.context is zeroed out If nfsd4_encode_fattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to uninitialized junk on the stack, which we'll then try to free. Initialize it early.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 13, 2024
Updated
Aug 5, 2026
EPSS
0.4% · 35th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
5.5
CNA · Linux
9.8
4.3 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel6.7 and later · before 6.10.8
  • linux linux kernel6.11

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 6.7affected
    • f59388a579c6a395de8f7372b267d3abecd8d6bf and later · before dd65b324174a64558a16ebbf4c3266e5701185d0affected · git
    • f59388a579c6a395de8f7372b267d3abecd8d6bf and later · before f58bab6fd4063913bd8321e99874b8239e9ba726affected · git
    • before 6.7not affected · semver
    • 6.10.8 and later · up to and including 6.10.*not affected · semver
    • 6.11 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:9bpftoolbefore 7.4.0-503.19.1.el9_57.4.0-503.19.1.el9_5
AlmaLinux:9kernelbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64kbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-corebefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-debugbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-develbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-corebefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-cross-headersbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-debugbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-debug-corebefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-debug-develbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5
AlmaLinux:9kernel-debug-modulesbefore 5.14.0-503.19.1.el9_55.14.0-503.19.1.el9_5

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-46695Sep 13, 2024 · selinux,smack: don't bypass permissions check in inode_setsecctx hook
    17Monitor
  • ← EarlierCVE-2024-46696Sep 13, 2024 · nfsd: fix potential UAF in nfsd4_cb_getattr_release
    31Monitor
  • Later →CVE-2024-46698Sep 13, 2024 · video/aperture: optionally match the device in sysfb_disable()
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linuxdd65b324174a64558a16ebbf4c3266e5701185d0Vendor (CNA)
Linux Linuxf58bab6fd4063913bd8321e99874b8239e9ba726Vendor (CNA)
almalinux:bpftool7.4.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-503.19.1.el9_5 · AlmaLinux:9Package registry (OSV)
debian:linux6.10.9-1 · Debian:13Package registry (OSV)
red hat:bpftool-debuginfo0:7.4.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-503.19.1.el9_5 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2021-47194156 days apartcfg80211: call cfg80211_stop_ap when switch from P2P_GO type
    31Monitor
  • CVE-2023-52452204 days apartbpf: Fix accesses to uninit stack slots
    31Monitor
  • CVE-2024-450182 days apartnetfilter: flowtable: initialise extack before use
    22Monitor
  • CVE-2024-4494711 days apartfuse: Initialize beyond-EOF page contents before setting uptodate
    22Monitor
  • CVE-2024-4207846 days apartnfsd: initialise nfsd_info.mutex early.
    22Monitor
  • CVE-2024-3948570 days apartmedia: v4l: async: Properly re-initialise notifier entry in unregister
    22Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-665 · Improper Initialization

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records