CVE-2026-43033

crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption

State: Published
Severity: 7.8 High
Published: May 1, 2026
Updated: Oct 19, 2026
Reserved: May 1, 2026

Description

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,

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

CWE-682 Incorrect Calculation

Affected Products

Product	Versions
LinuxLinux	104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 8c62f618576519dbed6816fafc623ce592953025Affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 to before d589abd8b019b07075fda255ceab8c8e950cdb3fAffected 104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 5466e7d0cd9e4f9cef9d8f18f18b60e7bc1c77e5Affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 to before d0c4ff6812386880f30bc64c2921299cc4d7b47fAffected 104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 89fe118b6470119b20c04afc36e45b81a69ea11fAffected 104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 153d5520c3f9fd62e71c7e7f9e34b59cf411e555Affected 104880a6b470958ddc30e139c41aa4f6ed3a5234 to before cded4002d22177e8deaca1f257ecd932c9582b6bAffected 104880a6b470958ddc30e139c41aa4f6ed3a5234 to before e02494114ebf7c8b42777c6cd6982f113bfdbec7Affected
LinuxLinux	4.3Affected before 4.3Not affected 5.10.254 through 5.10.Not affected 5.15.204 through 5.15.Not affected 6.1.170 through 6.1.Not affected 6.6.137 through 6.6.Not affected 6.12.85 through 6.12.Not affected 6.18.22 through 6.18.Not affected 6.19.12 through 6.19.*Not affected 7.0 and laterNot affected

Product

Versions

LinuxLinux

104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 8c62f618576519dbed6816fafc623ce592953025Affected
104880a6b470958ddc30e139c41aa4f6ed3a5234 to before d589abd8b019b07075fda255ceab8c8e950cdb3fAffected
104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 5466e7d0cd9e4f9cef9d8f18f18b60e7bc1c77e5Affected
104880a6b470958ddc30e139c41aa4f6ed3a5234 to before d0c4ff6812386880f30bc64c2921299cc4d7b47fAffected
104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 89fe118b6470119b20c04afc36e45b81a69ea11fAffected
104880a6b470958ddc30e139c41aa4f6ed3a5234 to before 153d5520c3f9fd62e71c7e7f9e34b59cf411e555Affected
104880a6b470958ddc30e139c41aa4f6ed3a5234 to before cded4002d22177e8deaca1f257ecd932c9582b6bAffected
104880a6b470958ddc30e139c41aa4f6ed3a5234 to before e02494114ebf7c8b42777c6cd6982f113bfdbec7Affected

LinuxLinux

4.3Affected
before 4.3Not affected
5.10.254 through 5.10.*Not affected
5.15.204 through 5.15.*Not affected
6.1.170 through 6.1.*Not affected
6.6.137 through 6.6.*Not affected
6.12.85 through 6.12.*Not affected
6.18.22 through 6.18.*Not affected
6.19.12 through 6.19.*Not affected
7.0 and laterNot affected

References

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