CVE-2023-53769
In the Linux kernel, the following vulnerability has been resolved: virt/coco/sev-guest: Double-buffer messages The encryption algorithms
CVSS
9.3
Critical
EPSS
0.1%
p1
KEV
—
Exploit Today
0
0-100
Published: Dec 8, 2025 · Last modified: Aug 4, 2026
0.1%EPSS · 30 days0.1%
2026-10-032026-10-31
In the Linux kernel, the following vulnerability has been resolved: virt/coco/sev-guest: Double-buffer messages The encryption algorithms read and write directly to shared unencrypted memory, which may leak information as well as permit the host to tamper with the message integrity. Instead, copy whole messages in or out as needed before doing any computation on them.
- git.kernel.orghttps://git.kernel.org/stable/c/4b69c63f716cfda38e1210e65b68f67f6cee2ddf
- git.kernel.orghttps://git.kernel.org/stable/c/577a64725bfd77645986168e953d405067ee565b
- git.kernel.orghttps://git.kernel.org/stable/c/965006103a14703cc42043bbf9b5e0cdf7a468ad
- git.kernel.orghttps://git.kernel.org/stable/c/c27dafc4aa50a29ec927b3aa84ac7b430071f682
No related CVEs by CWE or product.