CVE-2026-43033 (GCVE-0-2026-43033)
Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-09-08 08:48
VLAI
EPSS
VEX
Title
crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
Summary
In the Linux kernel, the following vulnerability has been resolved:
crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
When decrypting data that is not in-place (src != dst), there is
no need to save the high-order sequence bits in dst as it could
simply be re-copied from the source.
However, the data to be hashed need to be rearranged accordingly.
Thanks,
Severity
7.8 (High)
Assigner
References
10 references
Impacted products
8 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 8c62f618576519dbed6816fafc623ce592953025
(git)
Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < d589abd8b019b07075fda255ceab8c8e950cdb3f (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 5466e7d0cd9e4f9cef9d8f18f18b60e7bc1c77e5 (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < d0c4ff6812386880f30bc64c2921299cc4d7b47f (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 89fe118b6470119b20c04afc36e45b81a69ea11f (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < 153d5520c3f9fd62e71c7e7f9e34b59cf411e555 (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < cded4002d22177e8deaca1f257ecd932c9582b6b (git) Affected: 104880a6b470958ddc30e139c41aa4f6ed3a5234 , < e02494114ebf7c8b42777c6cd6982f113bfdbec7 (git) |
guessed | |
| Linux | Linux |
Affected:
4.3
Unaffected: 0 , < 4.3 (semver) Unaffected: 5.10.254 , ≤ 5.10.* (semver) Unaffected: 5.15.204 , ≤ 5.15.* (semver) Unaffected: 6.1.170 , ≤ 6.1.* (semver) Unaffected: 6.6.137 , ≤ 6.6.* (semver) Unaffected: 6.12.85 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
guessed | |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
guessed |
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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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