CVE-2026-43463

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-05-08 Modified: 2026-11-11 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer() rxrpc_kernel_lookup_peer() can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL on allocation failure. (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the error code returned.

Weakness Classification (1)

Affected Software (11)

VendorProductVersion
Linux Linux 72904d7b9bfbf2dd146254edea93958bc35bbbfe < d854c93b12f2076c564f595b41b93b02fd42a0f9
Linux Linux 72904d7b9bfbf2dd146254edea93958bc35bbbfe < d55fa7cd4b19ba91b34b307d769c149e56ad0a75
Linux Linux 72904d7b9bfbf2dd146254edea93958bc35bbbfe < 54331c5dcc6d97683d7ca2788e7ef9c9505e1477
Linux Linux 72904d7b9bfbf2dd146254edea93958bc35bbbfe < 4245a79003adf30e67f8e9060915bd05cb31d142
Linux Linux 056fc740be000d39a7dba700a935f3bbfbc664e6
Linux Linux 6.7.3 < 6.8
Linux Linux 6.8
linux linux_kernel 6.7.3 – 6.8
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.11%
Raw Score 0.001140
Percentile 1.5%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00114
2026-11-12
0.00114
2026-11-10
0.00114
2026-11-09
0.00114
2026-11-08
0.00114
2026-11-07
0.00114
2026-11-06
0.00114

Intelligence Sources

mitre ref →
nvd ref →