CVE-2026-64371

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-07-25 Modified: 2026-11-10 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: proc: protect ptrace_may_access() with exec_update_lock (part 1) Fix the easy cases where procfs currently calls ptrace_may_access() without exec_update_lock protection, where the fix is to simply add the extra lock or use mm_access(): - do_task_stat(): grab exec_update_lock - proc_pid_wchan(): grab exec_update_lock - proc_map_files_lookup(): use mm_access() instead of get_task_mm() - proc_map_files_readdir(): use mm_access() instead of get_task_mm() - proc_ns_get_link(): grab exec_update_lock - proc_ns_readlink(): grab exec_update_lock

Affected Software (32)

VendorProductVersion
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < ae1e630bcaac739f625822078edbaea98366930d
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < d54f14655fd7d7b293698a8b6918563c4c0465e7
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < 7456ae990a9738962b33146916fabca62ae3d4e0
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < f9b4b03ccc9c69bf7f7298d4559906ebea7143b3
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < c1cfd63326f5d09999134e9052c353faf738286e
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < 6650527444dadc63d84aa939d14ecba4fadb2f69
Linux Linux 6b06d6282100dd5aacf7d45443d651a1995bd9c4
Linux Linux 334ed22054b2ec8477e4409e214fc139cf937ef6
Linux Linux 2.6.27.23 < 2.6.28
Linux Linux 2.6.29.3 < 2.6.30
Linux Linux 2.6.30
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < ae1e630bcaac739f625822078edbaea98366930d
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < d54f14655fd7d7b293698a8b6918563c4c0465e7
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < 7456ae990a9738962b33146916fabca62ae3d4e0
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < f9b4b03ccc9c69bf7f7298d4559906ebea7143b3
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < c1cfd63326f5d09999134e9052c353faf738286e
Linux Linux f83ce3e6b02d5e48b3a43b001390e2b58820389d < 6650527444dadc63d84aa939d14ecba4fadb2f69
Linux Linux 6b06d6282100dd5aacf7d45443d651a1995bd9c4
Linux Linux 334ed22054b2ec8477e4409e214fc139cf937ef6
Linux Linux 2.6.27.23 < 2.6.28
Linux Linux 2.6.29.3 < 2.6.30
Linux Linux 2.6.30
linux linux_kernel 2.6.27.23 – 2.6.28
linux linux_kernel 2.6.30
linux linux_kernel 2.6.30
linux linux_kernel 2.6.30
Showing 30 of 32 entries

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

0.13%
Raw Score 0.001290
Percentile 2.6%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00129
2026-11-12
0.00129
2026-11-10
0.00129
2026-11-09
0.00129
2026-11-08
0.00129
2026-11-07
0.00129
2026-11-06
0.00129

Intelligence Sources

mitre ref →
nvd ref →