CVE-2026-45988
Critical
Description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix re-decryption of RESPONSE packets If a RESPONSE packet gets a temporary failure during processing, it may end up in a partially decrypted state - and then get requeued for a retry. Fix this by just discarding the packet; we will send another CHALLENGE packet and thereby elicit a further response. Similarly, discard an incoming CHALLENGE packet if we get an error whilst generating a RESPONSE; the server will send another CHALLENGE.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux Kernel
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-682CWE-682
How to fix
Update
- linux linux_kernel6.6.140, 6.12.86, 6.18.27, 7.0.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.22 ≤ v < 6.6.140, 6.7 ≤ v < 6.12.86, 6.13 ≤ v < 6.18.27, 6.19 ≤ v < 7.0.4 | 6.6.140, 6.12.86, 6.18.27, 7.0.4 |
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