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Vulnerability record · CVE-2026-45988 · published 27 May 2026

CVE-2026-45988: Linux kernel vulnerability

Linux · Linux Kernel

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.

9.8 CVSS 3.1 Critical EPSS 0.67% · top 50.0%
9.8CVSS 3.1 base score
0.67%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/0422e7a4883f25101903f3e8105c0808aa5f4ce9 Patch
https://git.kernel.org/stable/c/76cb9a2d252274adfae6e293a292434631a7d472 Patch
https://git.kernel.org/stable/c/7b89868305052b94a91b708c462bc2281fa42a4a Patch
https://git.kernel.org/stable/c/d61482be4aae1835b78875761206241835a7510e Patch
https://git.kernel.org/stable/c/f55b383070170e988e4dec28be2af1714d258521 Patch

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-45988), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.