CVE-2022-2586

Advisory lineage Upstream: 0 Downstream: 40
Analyzed
Published: 08 Jan 2024, 17:46
Last modified:21 Oct 2025, 23:05

Vulnerability Summary

Overall Risk (default)
medium
42/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
2.82% LOW
3% probability +0.02%
KEV
Listed
CISA
1 listing
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

08 Jan 2024, 17:46
Published
Vulnerability first disclosed
26 Jun 2024, 00:00
Added to CISA KEV
Linux Kernel Use-After-Free Vulnerability
17 Jul 2024, 00:00
CISA Remediation Due
Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
21 Oct 2025, 23:05
Last Modified
Vulnerability information updated

Description

It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 2.82%• Percentile: 86%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 20.04 | 22.04

  • linux•linux_kernel

    ≤ 5.19.17 | 6.0

  • the linux kernel organization•linux

    < 6.0~rc1

References (15)