CVE-2026-64000 (GCVE-0-2026-64000)
Vulnerability from cvelistv5 – Published: 2026-07-19 14:56 – Updated: 2026-08-05 12:38
VLAI
EPSS
VEX
Title
net: hsr: fix potential OOB access in supervision frame handling
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: hsr: fix potential OOB access in supervision frame handling
Ensure the entire TLV header is linearized before access by adding
sizeof(struct hsr_sup_tlv) to the pskb_may_pull() calls. Without this,
a truncated frame could cause an out-of-bounds access.
Severity
9.8 (Critical)
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
eafaa88b3eb7f28aecb222281655473431d3ef2e , < 09a37dca090c55ffb1a33f52d8667f1c2367ef48
(git)
Affected: eafaa88b3eb7f28aecb222281655473431d3ef2e , < a4b64f3e9c7b8259f7dd251a0313420ba7c01852 (git) Affected: eafaa88b3eb7f28aecb222281655473431d3ef2e , < 71c986c0ba45b7dc574fae27c83e7b6671556f37 (git) Affected: eafaa88b3eb7f28aecb222281655473431d3ef2e , < fbd0662f9c9a66e8cc3df3099cca8ed6d3837cc7 (git) Affected: eafaa88b3eb7f28aecb222281655473431d3ef2e , < 78607a6854a22a2502f68092202e75a39af4865d (git) Affected: eafaa88b3eb7f28aecb222281655473431d3ef2e , < f229426072fc865654a60978bb7fda790a051ff3 (git) |
guessed | |
| Linux | Linux |
Affected:
5.16
Unaffected: 0 , < 5.16 (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed |
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"id": "CVE-2026-64000",
"initial_release_date": "2026-07-19T00:00:00+00:00",
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: net: hsr: fix potential OOB access in supervision frame handling",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64000.json",
"version": "3"
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"current_release_date": "2026-10-08T23:58:10Z",
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"id": "CVE-2026-64000",
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"product_status:recommended": "416",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-64000",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64000.json",
"version": "17"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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