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NVD / CVE Program· CNA Linux

CVE-2026-72433: netfilter: nft_meta_bridge: fix NFT_META_BRI_IIFPVID stack leak

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 27dd2997746d54ebc079bb13161cc1bdd401d4a6, 4dce8bf588a89bef99b446136d15685a837e7acf, 7e23965d44f06ed93fb5362fb1e321b769eecc3b.

Low priority for now. Upgrade to Linux Linux 27dd2997746d54ebc079bb13161cc1bdd401d4a6, 4dce8bf588a89bef99b446136d15685a837e7acf, 7e23965d44f06ed93fb5362fb1e321b769eecc3b 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: nft_meta_bridge: fix NFT_META_BRI_IIFPVID stack leak This needs to test for nonzero retval.

—No exploit Fix available
Published
Aug 15, 2026
Updated
Aug 17, 2026
EPSS
0.2% · 12th 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%

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-2026-72433

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
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before c37a39b963034cc2d141baf46017614cb1fc275faffected · git
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before a853c3769b73ceb2d2b735aff621d1d51fe0553daffected · git
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before b1b0b9efe641afa5c2d4ba2ec77aed7b6f4bc398affected · git
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before f73b7de5338fcca7f63ca88597a050c119501531affected · git
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before 92c9682b36f0c8f7a1f14d4558b72793f62e90a1affected · git
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before 7e23965d44f06ed93fb5362fb1e321b769eecc3baffected · git
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before 4dce8bf588a89bef99b446136d15685a837e7acfaffected · git
    • c54c7c685494fc0f1662091d4d0c4fc26e810471 and later · before 27dd2997746d54ebc079bb13161cc1bdd401d4a6affected · 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 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

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-2026-72431Aug 15, 2026 · alloc_tag: fix use-after-free in /proc/allocinfo after module unload
    0Monitor
  • ← EarlierCVE-2026-72432Aug 15, 2026 · tpm_crb: Check ACPI_COMPANION() against NULL during probe
    0Monitor
  • Later →CVE-2026-72437Aug 15, 2026 · md/raid1: free r1_bio when REQ_NOWAIT is set and read would block on retry
    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 Linux27dd2997746d54ebc079bb13161cc1bdd401d4a6Vendor (CNA)
Linux Linux4dce8bf588a89bef99b446136d15685a837e7acfVendor (CNA)
Linux Linux7e23965d44f06ed93fb5362fb1e321b769eecc3bVendor (CNA)
Linux Linux92c9682b36f0c8f7a1f14d4558b72793f62e90a1Vendor (CNA)
Linux Linuxa853c3769b73ceb2d2b735aff621d1d51fe0553dVendor (CNA)
Linux Linuxb1b0b9efe641afa5c2d4ba2ec77aed7b6f4bc398Vendor (CNA)
Linux Linuxc37a39b963034cc2d141baf46017614cb1fc275fVendor (CNA)
Linux Linuxf73b7de5338fcca7f63ca88597a050c119501531Vendor (CNA)
debian:linux6.1.180-1 · 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.

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).

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