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NVD / CVE Program· CNA Linux

CVE-2024-26679: inet: read sk->sk_family once in inet_recv_error()

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: 0.18% (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 3.18, 307fa8a75ab7423fa5c73573ec3d192de5027830, 3266e638ba5cc1165f5e6989eb8c0720f1cc4b41.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 3.18, 307fa8a75ab7423fa5c73573ec3d192de5027830, 3266e638ba5cc1165f5e6989eb8c0720f1cc4b41 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: inet: read sk->sk_family once in inet_recv_error() inet_recv_error() is called without holding the socket lock. IPv6 socket could mutate to IPv4 with IPV6_ADDRFORM socket option and trigger a KCSAN warning.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Apr 2, 2024
Updated
Oct 15, 2026
EPSS
0.1% · 7th 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 · 0.1%

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-2024-26679

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
debiandebian linux

Affected versions

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

  • debian debian linux10.0
  • linux linux kernel4.20 and later · before 5.4.269
  • linux linux kernel5.5 and later · before 5.10.210
  • linux linux kernel5.11 and later · before 5.15.149
  • linux linux kernel3.18 and later · before 4.19.307
  • linux linux kernel6.2 and later · before 6.6.17
  • linux linux kernel6.7 and later · before 6.7.5
  • linux linux kernel5.16 and later · before 6.1.78
  • 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

    • 433337f9c00cac447d020922f59237273f5d92be, 3.18affected
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before caa064c3c2394d03e289ebd6b0be5102eb8a5b40affected · git
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before 5993f121fbc01dc2d734f0ff2628009b258fb1ddaffected · git
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before 88081ba415224cf413101def4343d660f56d082baffected · git
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before 3266e638ba5cc1165f5e6989eb8c0720f1cc4b41affected · git
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before 54538752216bf89ee88d47ad07802063a498c299affected · git
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before 4a5e31bdd3c1702b520506d9cf8c41085f75c7f2affected · git
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before 307fa8a75ab7423fa5c73573ec3d192de5027830affected · git
    • f4713a3dfad045d46afcb9c2a7d0bba288920ed4 and later · before eef00a82c568944f113f2de738156ac591bbd5cdaffected · git
    • 3.17.7 and later · before 3.18affected · 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 6.7.7-16.7.7-1

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-2024-26671Apr 2, 2024 · blk-mq: fix IO hang from sbitmap wakeup race
    18Monitor
  • ← EarlierCVE-2024-26677Apr 2, 2024 · rxrpc: Fix delayed ACKs to not set the reference serial number
    22Monitor
  • Later →CVE-2023-52637Apr 3, 2024 · can: j1939: Fix UAF in j1939_sk_match_filter during setsockopt(SO_J1939_FILTER)
    31Monitor

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 Linux3.18Vendor (CNA)
Linux Linux307fa8a75ab7423fa5c73573ec3d192de5027830Vendor (CNA)
Linux Linux3266e638ba5cc1165f5e6989eb8c0720f1cc4b41Vendor (CNA)
Linux Linux4a5e31bdd3c1702b520506d9cf8c41085f75c7f2Vendor (CNA)
Linux Linux54538752216bf89ee88d47ad07802063a498c299Vendor (CNA)
Linux Linux5993f121fbc01dc2d734f0ff2628009b258fb1ddVendor (CNA)
Linux Linux88081ba415224cf413101def4343d660f56d082bVendor (CNA)
Linux Linuxcaa064c3c2394d03e289ebd6b0be5102eb8a5b40Vendor (CNA)
Linux Linuxeef00a82c568944f113f2de738156ac591bbd5cdVendor (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.

No nightly-computed relations.

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-667 · Improper Locking

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.

Change log

  1. Fix✗ → ✓

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

References

Show all references (11 more)

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

All records