7.5

CVE-2026-23451: bonding: prevent potential infinite loop in bond_header_parse()

Modified
AliasesUBUNTU-CVE-2026-23451
Published 03-04-2026Last modified 30-10-2026

Vulnerability summary

CVE-2026-23451 is a high (CVSS 7.5) Loop with Unreachable Exit Condition vulnerability in linux. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 39.7% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.46%
0%100%
Low · +0.02 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 17
OPENSUSE-SU-2026:21388-1SUSE-SU-2026:22521-1SUSE-SU-2026:22522-1SUSE-SU-2026:22665-1SUSE-SU-2026:22666-1SUSE-SU-2026:22742-1

Timeline

  1. 03-04-2026
    PublishedVulnerability first disclosed.
  2. 30-10-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

Increase +0.02 pp

From 0.44% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu91 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 5d0fb9806ab6cf2c3cfba0e1b8c701da65e25af8, < 9532d0d0ad1d726c06f807e8f0f1ec93cbabb452 | ≥ 9baf26a91565b7bb2b1d9f99aaf884a2b28c2f6d, < 946bb6cacf0ccada7bc80f1cfa07c1ed79511c1c | ≥ 6ac890f1d60ac3707ee8dae15a67d9a833e49956, < 4172a7901cf43fe1cc63ef7a2ef33735ff7b7d13 | ≥ 95597d11dc8bddb2b9a051c9232000bfbb5e43ba, < 9b49c854f14f5e2d493e562a1e28d2e57fe37371 | ≥ 950803f7254721c1c15858fbbfae3deaaeeecb11, < b7405dcf7385445e10821777143f18c3ce20fa04 | b1f22a658a7b20bcb7d34d40cb2ef3e52847e2fb | ≥ 6.1.191, < 6.2 | ≥ 6.18.19, < 6.18.20 | ≥ 6.19.9, < 6.19.10
  • linux_kernelEOL6.12.78 | 6.18.19 | 6.19.9 | 7.0:rc1 | 7.0:rc2 | 7.0:rc3 | 7.0:rc4

2 vendors · 93 products

References

8 links