SECUFOCUSNOW
Home›CVE index›CVE-2026-23451
Review reviewHigh

CVE-2026-23451

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: bonding: prevent potential infinite loop in bond_header_parse() bond_header_parse() can loop if a stack of two bonding devices is setup, because skb->dev always points to the hierarchy top. Add new "const struct net_device *dev" parameter to (struct header_ops)->parse() method to make sure the recursion is bounded, and that the final leaf parse method is called.

CVSS
7.5
EPSS
0.44%
36.3% percentile
CISA KEV
Not listed
Published
2026.04.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.44%
Technical severityCVSS 7.5

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: bonding: prevent potential infinite loop in bond_header_parse() bond_header_parse() can loop if a stack of two bonding devices is setup, because skb->dev always points to the hierarchy top. Add new "const struct net_device *dev" parameter to (struct header_ops)->parse() method to make sure the recursion is bounded, and that the final leaf parse method is called.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 5d0fb9806ab6cf2c3cfba0e1b8c701da65e25af8 < 9532d0d0ad1d726c06f807e8f0f1ec93cbabb452, >= 9baf26a91565b7bb2b1d9f99aaf884a2b28c2f6d < 946bb6cacf0ccada7bc80f1cfa07c1ed79511c1c, >= 6ac890f1d60ac3707ee8dae15a67d9a833e49956 < 4172a7901cf43fe1cc63ef7a2ef33735ff7b7d13, >= 95597d11dc8bddb2b9a051c9232000bfbb5e43ba < 9b49c854f14f5e2d493e562a1e28d2e57fe37371, >= 950803f7254721c1c15858fbbfae3deaaeeecb11 < b7405dcf7385445e10821777143f18c3ce20fa04, >= 6.18.19 < 6.18.20, >= 6.19.9 < 6.19.10, 6.12.78, 6.18.19, 6.19.9, 7.0
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
CWE-835
CVE-2026-23451 — Linux Linux, linux kernel | SECUFOCUS NOW