High 7.5Published Aug 15, 2026

CVE-2026-74429rxrpc: Fix the reception of a reply packet before data transmission

Updated under an hour ago (2026-10-19 06:20 UTC)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix the reception of a reply packet before data transmission Fix rxrpc_receiving_reply() to handle the reception of an apparent reply DATA packet before rxrpc has had a chance to send any request DATA packets on a client call by checking to see if the call has been exposed yet by sending the first packet. Without this, rxrpc_rotate_tx_window() might oops. Also fix rxrpc_rotate_tx_window() to handle the Tx queue being empty by changing the do...while loop into a while loop, just in case a call is abnormally terminated by an early reply before the last request packet is transmitted.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from b341a0263b1b804d329f864c2dc24815364510ec before f9be514984471ff0003738b2e1efed12bc3433ff; from b341a0263b1b804d329f864c2dc24815364510ec before e220ae559e5a0fc33e41ec6a348ea50387cb8b0f; from b341a0263b1b804d329f864c2dc24815364510ec before a58e33405acd2584e730c1da72635f822ada6b49	CNA record

References

https://git.kernel.org/stable/c/f9be514984471ff0003738b2e1efed12bc3433ff
https://git.kernel.org/stable/c/e220ae559e5a0fc33e41ec6a348ea50387cb8b0f
https://git.kernel.org/stable/c/a58e33405acd2584e730c1da72635f822ada6b49

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.