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CVE-2026-52915

In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_hbh: reject oversized option lists struct ip6t_opts stores at most IP6T_OPTS_OPTSNR option descriptors, but hbh_mt6_check() does not reject larger optsnr values supplied from userspace. Validate optsnr in the rule setup path so only match data that fits the fixed-size opts array can be installed. This follows the existing xtables pattern of rejecting invalid user-provided counts in checkentry() and keeps the p
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:488863d25bf7e1b6990f7cfb95ef626de845b6e8b6bdf131d10c28bc24b82948
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/netfilter/ip6t_hbh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2d523ba48d4ecc46acfb6aba548292cfcce1ac02","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"588933f1a2ca5ff99274f8c9f25dc3a25d0191c3","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"784aadea7a108c9f90985683caa87fb0198c6a39","status":"affected","version":"1da177e4c3f41524…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/netfilter/ip6t_hbh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ipv6/netfilter/ip6t_hbh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2d523ba48d4ecc46acfb6aba548292cfcce1ac02","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"588933f1a2ca5ff99274f8c9f25dc3a25d0191c3","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"784aadea7a108c9f90985683caa87fb0198c6a39","status":"affected","version":"1da177e4c3f41524…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ipv6/netfilter/ip6t_hbh.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.12"},{"lessThan":"2.6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/2d523ba48d4ecc46acfb6aba548292cfcce1ac02"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/41ec2e242f1702e8370ddfe14d22b7a766021c3e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/4322dcde6b4173c2d8e8e6118ed290794263bcc8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/57b0ac5e1b46f1f0338dff392ef2092e2871b412"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/588933f1a2ca5ff99274f8c9f25dc3a25d0191c3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/6feb43c0995ab3a9c826707eb46541a1696fe4f7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/784aadea7a108c9f90985683caa87fb0198c6a39"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/db0250470f023f159094052c0bd5ab026a88ae93"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e9d4fa0b535d52df01944e18aa0ba0562ac359b58927410a98a21f6627bf54ae · sha256:152431e0389b8afc… · /containers/cna/references/4

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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