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NVD / CVE Program· CNA Linux

CVE-2023-54240: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all()

Noroxi assessment

Priority: Monitor (action score 0/100)

  • 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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 072324cfab9b96071c0782f51f53cc5aea1e9d5b, 653fbddbdfc6673bba01b13dae5a4384ad8f92ec, 751b2e22a188b0c306029d094da29b6b8de31430.

Low priority for now. Upgrade to Linux Linux 072324cfab9b96071c0782f51f53cc5aea1e9d5b, 653fbddbdfc6673bba01b13dae5a4384ad8f92ec, 751b2e22a188b0c306029d094da29b6b8de31430 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: net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_hwlro_get_fdir_all() rule_locs is allocated in ethtool_get_rxnfc and the size is determined by rule_cnt from user space. So rule_cnt needs to be check before using rule_locs to avoid NULL pointer dereference.

—No exploit Fix available
Published
Dec 30, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 11th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • 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 exploit code appears or is weaponized
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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.

—

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

    • 4.9affected
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before 7776591e5ae2befff86579f68916a171971c6aabaffected · git
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before 751b2e22a188b0c306029d094da29b6b8de31430affected · git
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before 653fbddbdfc6673bba01b13dae5a4384ad8f92ecaffected · git
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before 75f2de75c1182e80708c932418e4895dbc88b68faffected · git
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before 072324cfab9b96071c0782f51f53cc5aea1e9d5baffected · git
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before ff5faed5f5487b0fd2b640ba1304f82a5ebaab42affected · git
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before fe0195fe48f85182bc7e7eabcad925bd3cbc10f5affected · git
    • 7aab747e5563ecbc9f3cb64ddea13fe7b9fee2bd and later · before e4c79810755f66c9a933ca810da2724133b1165aaffected · git
    • before 4.9not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.55-16.1.55-1
Debian:13linuxbefore 6.5.6-16.5.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-54211Dec 30, 2025 · tracing: Fix warning in trace_buffered_event_disable()
    0Monitor
  • ← EarlierCVE-2023-54239Dec 30, 2025 · iommufd: Check for uptr overflow
    0Monitor
  • Later →CVE-2023-54241Dec 30, 2025 · MIPS: KVM: Fix NULL pointer dereference
    0Monitor

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 Linux072324cfab9b96071c0782f51f53cc5aea1e9d5bVendor (CNA)
Linux Linux653fbddbdfc6673bba01b13dae5a4384ad8f92ecVendor (CNA)
Linux Linux751b2e22a188b0c306029d094da29b6b8de31430Vendor (CNA)
Linux Linux75f2de75c1182e80708c932418e4895dbc88b68fVendor (CNA)
Linux Linux7776591e5ae2befff86579f68916a171971c6aabVendor (CNA)
Linux Linuxe4c79810755f66c9a933ca810da2724133b1165aVendor (CNA)
Linux Linuxfe0195fe48f85182bc7e7eabcad925bd3cbc10f5Vendor (CNA)
Linux Linuxff5faed5f5487b0fd2b640ba1304f82a5ebaab42Vendor (CNA)
debian:linux6.1.55-1 · 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).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

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✗ → ✓

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References

Show all references (7 more)

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

All records