Riskcovery

CVE-2026-45988

rxrpc: Fix re-decryption of RESPONSE packets

State
Published
Severity
9.8 Critical
Published
May 27, 2026
Updated
Oct 19, 2026
Reserved
May 13, 2026

Read the record on cve.org

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

CVSSScoreVectorSource
3.19.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • 17926a79320afa9b95df6b977b40cca6d8713cea to before d61482be4aae1835b78875761206241835a7510eAffected
  • 17926a79320afa9b95df6b977b40cca6d8713cea to before 7b89868305052b94a91b708c462bc2281fa42a4aAffected
  • 17926a79320afa9b95df6b977b40cca6d8713cea to before 76cb9a2d252274adfae6e293a292434631a7d472Affected
  • 17926a79320afa9b95df6b977b40cca6d8713cea to before f55b383070170e988e4dec28be2af1714d258521Affected
  • 17926a79320afa9b95df6b977b40cca6d8713cea to before 0422e7a4883f25101903f3e8105c0808aa5f4ce9Affected
LinuxLinux
  • 2.6.22Affected
  • before 2.6.22Not affected
  • 6.6.140 through 6.6.*Not affected
  • 6.12.86 through 6.12.*Not affected
  • 6.18.27 through 6.18.*Not affected
  • 7.0.4 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.