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NVD / CVE Program· CNA Linux

CVE-2024-26849: netlink: add nla be16/32 types to minlen array

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: 0.22% (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 000a68159c0326b46c42ec712ab98793e7e625a7, 0ac219c4c3ab253f3981f346903458d20bacab32, 7a9d14c63b35f89563c5ecbadf918ad64979712d.

Low priority for now. Upgrade to Linux Linux 000a68159c0326b46c42ec712ab98793e7e625a7, 0ac219c4c3ab253f3981f346903458d20bacab32, 7a9d14c63b35f89563c5ecbadf918ad64979712d 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: netlink: add nla be16/32 types to minlen array BUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline] BUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline] BUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline] BUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631 nla_validate_range_unsigned lib/nlattr.c:222 [inline] nla_validate_int_range lib/nlattr.c:336 [inline] validate_nla lib/nlattr.c:575 [inline] ... The message in question matches this policy: [NFTA_TARGET_REV] = NLA_POLICY_MAX(NLA_BE32, 255), but because NLA_BE32 size in minlen array is 0, the validation code will read past the malformed (too small) attribute. Note: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing: those likely should be added too.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Apr 17, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 12th 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 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-26849

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 kernel6.1 and later · before 6.1.81
  • linux linux kernel6.2 and later · before 6.6.21
  • linux linux kernel6.7 and later · before 6.7.9
  • linux linux kernel6.8

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

    • 6.1affected
    • 24ea1c8abaae6541ad95912422a9af4fb858428d and later · before 000a68159c0326b46c42ec712ab98793e7e625a7affected · git
    • cbfac0add2afe8960a09806012313765a2179423 and later · before 80b40f9cb87f3bf5877dfb852765cf92bc03ca77affected · git
    • ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f and later · before 0ac219c4c3ab253f3981f346903458d20bacab32affected · git
    • ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f and later · before a2ab028151841cd833cb53eb99427e0cc990112daffected · git
    • ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f and later · before 7a9d14c63b35f89563c5ecbadf918ad64979712daffected · git
    • ecaf75ffd5f5db320d8b1da0198eef5a5ce64a3f and later · before 9a0d18853c280f6a0ee99f91619f2442a17a323aaffected · git
    • before 6.1not affected · semver
    • 6.1.81 and later · up to and including 6.1.*not affected · semver
    • 6.6.21 and later · up to and including 6.6.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.9-16.7.9-1

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-2023-52644Apr 17, 2024 · wifi: b43: Stop/wake correct queue in DMA Tx path when QoS is disabled
    25Monitor
  • ← EarlierCVE-2024-26847Apr 17, 2024 · powerpc/rtas: use correct function name for resetting TCE tables
    20Monitor
  • Later →CVE-2024-26850Apr 17, 2024 · mm/debug_vm_pgtable: fix BUG_ON with pud advanced test
    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 Linux000a68159c0326b46c42ec712ab98793e7e625a7Vendor (CNA)
Linux Linux0ac219c4c3ab253f3981f346903458d20bacab32Vendor (CNA)
Linux Linux7a9d14c63b35f89563c5ecbadf918ad64979712dVendor (CNA)
Linux Linux80b40f9cb87f3bf5877dfb852765cf92bc03ca77Vendor (CNA)
Linux Linux9a0d18853c280f6a0ee99f91619f2442a17a323aVendor (CNA)
Linux Linuxa2ab028151841cd833cb53eb99427e0cc990112dVendor (CNA)
debian:linux6.1.82-1 · Debian:12Package 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.

No history yet (it accumulates with the daily EPSS job).

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-2024-50302216 days apartHID: core: zero-initialize the report bufferKEV
    52Plan
  • CVE-2024-47685187 days apartnetfilter: nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
    36Monitor
  • CVE-2024-2702214 days apartfork: defer linking file vma until vma is fully initialized
    31Monitor
  • CVE-2021-4755337 days apartsched/scs: Reset task stack state in bringup_cpu()
    31Monitor
  • CVE-2024-3689843 days apartgpiolib: cdev: fix uninitialised kfifo
    31Monitor
  • CVE-2024-50143204 days apartudf: fix uninit-value use in udf_get_fileshortad
    31Monitor

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).

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-908 · Use of Uninitialized Resource

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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (5 more)

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

All records