CVE-2026-45988

CRITICAL

rxrpc: Fix re-decryption of RESPONSE packets

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 9.8
EPSS 0.0046
EPSS Percentile 36.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (18)
linux/Kernel 2.6.22 - 6.6.140linux
linux/Kernel 6.13.0 - 6.18.27linux
linux/Kernel 6.19.0 - 7.0.4linux
linux/Kernel 6.7.0 - 6.12.86linux
Linux/Linux < 2.6.22
Linux/Linux 17926a79320afa9b95df6b977b40cca6d8713cea - 0422e7a4883f25101903f3e8105c0808aa5f4ce9
Linux/Linux 17926a79320afa9b95df6b977b40cca6d8713cea - 76cb9a2d252274adfae6e293a292434631a7d472
Linux/Linux 17926a79320afa9b95df6b977b40cca6d8713cea - 7b89868305052b94a91b708c462bc2281fa42a4a
Linux/Linux 17926a79320afa9b95df6b977b40cca6d8713cea - d61482be4aae1835b78875761206241835a7510e
Linux/Linux 17926a79320afa9b95df6b977b40cca6d8713cea - f55b383070170e988e4dec28be2af1714d258521
... and 8 more
Published May 27, 2026
Tracked Since May 27, 2026