{"id":"CVE-2026-43033","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:\n\ncrypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption\n\nWhen decrypting data that is not in-place (src != dst), there is\nno need to save the …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 8c62f618576519dbed6816fafc623ce592953025","Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < d589abd8b019b07075fda255ceab8c8e950cdb3f","Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 5466e7d0cd9e4f9cef9d8f18f18b60e7bc1c77e5","Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < d0c4ff6812386880f30bc64c2921299cc4d7b47f","Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 89fe118b6470119b20c04afc36e45b81a69ea11f","Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 153d5520c3f9fd62e71c7e7f9e34b59cf411e555","Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < cded4002d22177e8deaca1f257ecd932c9582b6b","Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < e02494114ebf7c8b42777c6cd6982f113bfdbec7","Linux 4.3"],"published":"2026-05-01","updated":"2026-09-08","sourceUpdated":"2026-09-08T08:48:36.612Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-43033","references":[{"url":"https://git.kernel.org/stable/c/8c62f618576519dbed6816fafc623ce592953025"},{"url":"https://git.kernel.org/stable/c/d589abd8b019b07075fda255ceab8c8e950cdb3f"},{"url":"https://git.kernel.org/stable/c/5466e7d0cd9e4f9cef9d8f18f18b60e7bc1c77e5"},{"url":"https://git.kernel.org/stable/c/d0c4ff6812386880f30bc64c2921299cc4d7b47f"},{"url":"https://git.kernel.org/stable/c/89fe118b6470119b20c04afc36e45b81a69ea11f"},{"url":"https://git.kernel.org/stable/c/153d5520c3f9fd62e71c7e7f9e34b59cf411e555"},{"url":"https://git.kernel.org/stable/c/cded4002d22177e8deaca1f257ecd932c9582b6b"},{"url":"https://git.kernel.org/stable/c/e02494114ebf7c8b42777c6cd6982f113bfdbec7"}],"tags":["cve.org"],"epss":0.00135,"epssPercentile":0.03343,"ingestedAt":"2026-09-08T15:33:26.989Z","slug":"CVE-2026-43033","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption\n\nWhen decrypting data that is not in-place (src != dst), there is\nno need to save the high-order sequence bits in dst as it could\nsimply be re-copied from the source.\n\nHowever, the data to be hashed need to be rearranged accordingly.\n\n\nThanks,\n\n## Affected\n\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 8c62f618576519dbed6816fafc623ce592953025`\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < d589abd8b019b07075fda255ceab8c8e950cdb3f`\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 5466e7d0cd9e4f9cef9d8f18f18b60e7bc1c77e5`\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < d0c4ff6812386880f30bc64c2921299cc4d7b47f`\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 89fe118b6470119b20c04afc36e45b81a69ea11f`\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < 153d5520c3f9fd62e71c7e7f9e34b59cf411e555`\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < cded4002d22177e8deaca1f257ecd932c9582b6b`\n- `Linux >= 104880a6b470958ddc30e139c41aa4f6ed3a5234 < e02494114ebf7c8b42777c6cd6982f113bfdbec7`\n- `Linux 4.3`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}