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CVE-2021-45402: linux kernel before 5.16 (exclusive), 5.16 · update rc1, 5.16 · update rc2 (+3 more affected versions); +1 more…
CVE-2021-45402. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.00416 (percentile 0.33909), scored 2026-10-08.
Affected technology
linux kernel · before 5.16 (exclusive)
linux
linux kernel · 5.16 · update rc1
linux
linux kernel · 5.16 · update rc2
linux
linux kernel · 5.16 · update rc3
linux
linux kernel · 5.16 · update rc4
linux
linux kernel · 5.16 · update rc5
linux
n/a · n/a
Vendor not specified by the source
Description’s affected range: through v5.16-rc5 did not properly update bounds while handling the mov32 instruction
Component: Not specified by the source
Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
Local users can obtain potentially sensitive address information, aka a "pointer leak.". NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality impact as high; integrity and availability impact as none.
- CWE
- CWE-668
- CCR priority
- 22.1 /100 (P4)
- CVSS 3.1
- 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N · NVD
- EPSS
- 0.00416 · percentile 0.33909 · 2026-10-08
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-09 03:17:07.463462+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-09 03:13:32.966430+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2021-45402.html