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NVD / CVE Program· CNA Linux

CVE-2026-74548: forcedeth: fix UAF of txrx_stats in nv_remove

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.12% (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 201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1, 22666ba1420164753d7b0f5a841986b25ace5435, 7c22b4ee0bd003cecfc14ca28981cb213e201f70; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1, 22666ba1420164753d7b0f5a841986b25ace5435, 7c22b4ee0bd003cecfc14ca28981cb213e201f70; azl3 kernel 6.6.150.1-1 on Azure Linux 3.0 6.6.152.1-1 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: forcedeth: fix UAF of txrx_stats in nv_remove nv_remove() frees the per-CPU txrx_stats before unregister_netdev(). Until unregister completes, ndo_get_stats64, the NAPI/xmit data path, and nv_close()/drain may still access txrx_stats, leading to a use-after-free. Free the stats only after unregister_netdev().

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Aug 15, 2026
Updated
Oct 16, 2026
EPSS
0.1% · 2th percentile
CWE
—

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

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

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

Follow CVE-2026-74548

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.

—

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

    • 5.3affected
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before cdf864d5d3c813ae1876f2bacc1cf3ac3c66dfc9affected · git
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before 7c22b4ee0bd003cecfc14ca28981cb213e201f70affected · git
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before d51ce7a63b76eda02cabfed1b0cc277b2f5c9bccaffected · git
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before cf2dcde2284562ff87830ca0b7fa2b06e95aef1eaffected · git
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before c9d24a205fd508b9999fcab6aca4c590490a12cfaffected · git
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before ae20a8a4de06a289d40b0a0633d8d573f1fcb049affected · git
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before 201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1affected · git
    • f4b633b911fd3b4cbe1dc065e8fb064078d0889d and later · before 22666ba1420164753d7b0f5a841986b25ace5435affected · git
    • before 5.3not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.187-16.1.187-1
Debian:12linux-6.12before 6.12.107-1~deb12u16.12.107-1~deb12u1
Debian:13linuxbefore 6.12.105-16.12.105-1
Debian:14linuxbefore 7.1.8-17.1.8-1

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-2026-74546Aug 15, 2026 · hwmon: (adt7470) Fix divide-by-zero TOCTOU crash in fan speed read
    0Monitor
  • ← EarlierCVE-2026-74547Aug 15, 2026 · hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread
    0Monitor
  • Later →CVE-2026-74550Aug 15, 2026 · net: do not send ICMP/NDISC Redirects when peer allocation fails
    30Monitor

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 Linux201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1Vendor (CNA)
Linux Linux22666ba1420164753d7b0f5a841986b25ace5435Vendor (CNA)
Linux Linux7c22b4ee0bd003cecfc14ca28981cb213e201f70Vendor (CNA)
Linux Linuxae20a8a4de06a289d40b0a0633d8d573f1fcb049Vendor (CNA)
Linux Linuxc9d24a205fd508b9999fcab6aca4c590490a12cfVendor (CNA)
Linux Linuxcdf864d5d3c813ae1876f2bacc1cf3ac3c66dfc9Vendor (CNA)
Linux Linuxcf2dcde2284562ff87830ca0b7fa2b06e95aef1eVendor (CNA)
Linux Linuxd51ce7a63b76eda02cabfed1b0cc277b2f5c9bccVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.06.6.152.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.187-1 · Debian:12Package registry (OSV)
debian:linux-6.126.12.107-1~deb12u1 · 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.

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.

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

Weakness class (CWE)

—

CVSS vector

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

nvd-secondary

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. SSVC exploitation— → none
  2. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records