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NVD / CVE Program· CNA Linux

CVE-2026-90062: netfilter: nf_tables: move hardware offload step after building the chain blob

HighCVSS 7.1 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.16% (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 309acbab74e46114246bf4346c9b60b3d8cb4fcd, 52febaf1d311d6ede312b2ec7692a309714f9554, 6a7d3b074cfbb64513f5f92d60ab1b216ae98076; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1.

Low priority for now. Upgrade to Linux Linux 309acbab74e46114246bf4346c9b60b3d8cb4fcd, 52febaf1d311d6ede312b2ec7692a309714f9554, 6a7d3b074cfbb64513f5f92d60ab1b216ae98076; azl3 kernel 6.6.152.1-1 on Azure Linux 3.0 6.6.157.1-1 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: netfilter: nf_tables: move hardware offload step after building the chain blob Allocate the chain blob before the ruleset offload to reduce chances of entering an inconsistent state where the offloaded ruleset in the nic and the software ruleset differ.

Published
Sep 17, 2026
Updated
Oct 19, 2026
EPSS
0.1% · 5th percentile
CWE
—

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CNA vs NVD score

NVD
—
CNA · Linux
7.1
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-2026-90062

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
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before 923f824f30faebc5560c3061a595063cecdbdbb8affected · git
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before 6e7ad6e69be4751ab2476042c70c600bdaa8d4f2affected · git
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before 309acbab74e46114246bf4346c9b60b3d8cb4fcdaffected · git
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before 79eafe22ab0a650996da2b3e5d94a12c3e16f3aaaffected · git
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before 52febaf1d311d6ede312b2ec7692a309714f9554affected · git
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before d5497644329d3a01e951aba76561bbd883ff6b0caffected · git
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before 6a7d3b074cfbb64513f5f92d60ab1b216ae98076affected · git
    • c9626a2cbdb20e26587b3fad99960520a023432b and later · before b1881d362e1924b66f6016c3efd28807032b41bfaffected · 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 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.111-1~deb12u16.12.111-1~deb12u1
Debian:13linuxbefore 6.12.111-16.12.111-1
Debian:14linuxbefore 7.2.6-17.2.6-1

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-2026-90060Sep 17, 2026 · ALSA: control: Don't add invalid kcontrols to LED layer
    0Monitor
  • ← EarlierCVE-2026-90061Sep 17, 2026 · netfilter: nf_tables: skip double clone set expressions on element insert
    0Monitor
  • Later →CVE-2026-90063Sep 17, 2026 · virtio-net: Ensure that TCP packets don't overflow gso_segs
    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 Linux309acbab74e46114246bf4346c9b60b3d8cb4fcdVendor (CNA)
Linux Linux52febaf1d311d6ede312b2ec7692a309714f9554Vendor (CNA)
Linux Linux6a7d3b074cfbb64513f5f92d60ab1b216ae98076Vendor (CNA)
Linux Linux6e7ad6e69be4751ab2476042c70c600bdaa8d4f2Vendor (CNA)
Linux Linux79eafe22ab0a650996da2b3e5d94a12c3e16f3aaVendor (CNA)
Linux Linux923f824f30faebc5560c3061a595063cecdbdbb8Vendor (CNA)
Linux Linuxb1881d362e1924b66f6016c3efd28807032b41bfVendor (CNA)
Linux Linuxd5497644329d3a01e951aba76561bbd883ff6b0cVendor (CNA)
azl3 kernel 6.6.150.1-1 on Azure Linux 3.0—Microsoft (MSRC)
azl3 kernel 6.6.152.1-1 on Azure Linux 3.06.6.157.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package registry (OSV)
debian:linux6.12.111-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.111-1~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).

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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
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
None
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:N/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.

References

Show all references (7 more)

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

All records