The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - rxrpc: Fix the ACK parser to extract the SACK table for parsing Fix modification of the received skbuff in     rxrpc_input_soft_acks() and a potential incorrect access of the buffer in a fragmented UDP packet (the     packet would probably have to be deliberately pre-generated as fragmented) when AF_RXRPC tries to extract     the contents of the SACK table by copying out the contents of the SACK table into a buffer before     attempting to parse AF_RXRPC assumes that it can just call skb_condense() and then validly access the SACK     table from skb->data and that it will be a flat buffer - but skb_condense() can silently fail to do     anything under some circumstances. Note that whilst rxrpc_input_soft_acks() should be able to parse     extended ACKs, the rest of AF_RXRPC doesn't currently support that. Further, there's then no need to call     skb_condense() in rxrpc_input_ack(), so don't. (CVE-2026-53151)

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Linux Distros Unpatched Vulnerability : CVE-2026-53151

critical Nessus Plugin ID 323577

Version 1.3

Version 1.2

Version 1.1

Version 1.3 Jul 8, 2026, 11:53 AM CVSS metrics ("CVSSv2 score" set to 6.6) CVSS metrics ("CVSSv2 vector" set to "CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:C") CVSSv2 severity (based on CVE-2026-53151, severity decreased from "High" to "Medium") Detection (updated detection logic) Plugin metadata Plugin Feed: 202607081153
Version 1.2 Jul 2, 2026, 3:38 PM Detection (updated detection logic) Plugin Feed: 202607021538
Version 1.1 Jun 28, 2026, 8:12 PM New Plugin Feed: 202606282012