CVE-2026-43033: high-severity vulnerability in Linux
crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.1%
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,
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxRelated CVEs — Linux
In the same product, most dangerous first.
CVE-2026-31431HIGHcrypto: algif_aead - Revert to operating out-of-placeEPSS 98.1%KEVCVE-2026-46300HIGHnet: skbuff: preserve shared-frag marker during coalescingEPSS 16.1%KEVCVE-2024-53197HIGHALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesEPSS 4.1%KEVCVE-2024-53104HIGHmedia: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_formatEPSS 3.4%KEVCVE-2025-39682CRITICALtls: fix handling of zero-length records on the rx_listEPSS 3.3%KEVCVE-2024-36971HIGHnet: fix __dst_negative_advice() raceEPSS 2.7%KEV
References
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-082556.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-457936.htmlhttps://git.kernel.org/stable/c/153d5520c3f9fd62e71c7e7f9e34b59cf411e555https://git.kernel.org/stable/c/5466e7d0cd9e4f9cef9d8f18f18b60e7bc1c77e5https://git.kernel.org/stable/c/89fe118b6470119b20c04afc36e45b81a69ea11fhttps://git.kernel.org/stable/c/8c62f618576519dbed6816fafc623ce592953025https://git.kernel.org/stable/c/cded4002d22177e8deaca1f257ecd932c9582b6bhttps://git.kernel.org/stable/c/d0c4ff6812386880f30bc64c2921299cc4d7b47fhttps://git.kernel.org/stable/c/d589abd8b019b07075fda255ceab8c8e950cdb3fhttps://git.kernel.org/stable/c/e02494114ebf7c8b42777c6cd6982f113bfdbec7