CVE-2022-2586
HighExploitedPublic exploitIt 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.
Published Nov 9, 2022 · Updated Oct 14, 2026 · Also known as DEBIAN-CVE-2022-2586, USN-5557-1
Key Facts
Patch immediately- CVE-2022-2586 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Linux (The Linux Kernel Organization), Ubuntu Linux (Canonical), Linux Kernel and 22 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 19, 2024. Public exploit code is available.
- EPSS estimates a 10% probability of exploitation in the next 30 days.
- Fixed versions are available, including bpftool 4.18.0-425.3.1.el8, bpftool 5.10.118-12.ph4, bpftool 5.14.0-162.6.1.el9_1.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
10%
Higher than 95.6% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-2586 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Jun 26, 2024 | Jul 17, 2024 | Not reported |
| Industry KEV feed | Jun 19, 2024 | Jul 17, 2024 | Not reported |
| CIRCL KEV | Jun 26, 2024 | Jul 17, 2024 | Not reported |
| ENISA EUVD | Jun 26, 2024 | n/a | Not reported |
Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
Affected Products
1,174 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LinuxThe Linux Kernel Organization | >= 3.16 | 4.14.316 |
| Ubuntu LinuxCanonical | 14.04, 16.04, 18.04, 20.04, 22.04 | n/a |
| Linux KernelLinux | 6.0 | 5.19.17 |
| Simatic S7-1500 Tm Mfp FirmwareSiemens | See advisory | 1.1 |
| Sinec OSSiemens | See advisory | 2.4 |
Patched Releases
bpftool
4.18.0-425.3.1.el8, 5.10.118-12.ph4, 5.14.0-162.6.1.el9_1, 5.15.0-2.52.3.el8uek, 5.15.0-2.52.3.el9uek, 5.15.72-43.134.amzn2022, 5.15.73-45.135.amzn2022, 6.1.10-15.42.amzn2023
cluster-md-kmp-64kb
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
cluster-md-kmp-azure
5.14.21-150400.14.16.1, 5.3.18-150300.38.80.1
cluster-md-kmp-default
4.12.14-122.189.1, 4.12.14-122.266.1, 4.12.14-150100.197.168.1, 5.14.21-150400.24.170.2, 5.14.21-150400.24.28.1, 5.14.21-150500.55.113.1, 5.3.18-150200.24.134.1, 5.3.18-150300.59.211.1, 5.3.18-150300.59.98.1
cluster-md-kmp-preempt
5.3.18-150300.59.98.1
cluster-md-kmp-rt
4.12.14-10.157.1, 5.14.21-150400.15.5.1, 5.3.18-150300.106.1
dlm-kmp-64kb
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dlm-kmp-azure
5.14.21-150400.14.16.1, 5.3.18-150300.38.80.1
dlm-kmp-default
4.12.14-122.189.1, 4.12.14-122.266.1, 4.12.14-150100.197.168.1, 5.14.21-150400.24.170.2, 5.14.21-150400.24.28.1, 5.14.21-150500.55.113.1, 5.3.18-150200.24.134.1, 5.3.18-150300.59.211.1, 5.3.18-150300.59.98.1
dlm-kmp-preempt
5.3.18-150300.59.98.1
dlm-kmp-rt
4.12.14-10.157.1, 5.14.21-150400.15.5.1, 5.3.18-150300.106.1
dtb-aarch64
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-al
5.3.18-150300.59.98.1
dtb-allwinner
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-altera
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-amazon
5.14.21-150400.24.28.1
dtb-amd
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-amlogic
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-apm
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-apple
5.14.21-150400.24.28.1
dtb-arm
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-broadcom
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-cavium
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-exynos
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
dtb-freescale
5.14.21-150400.24.28.1, 5.3.18-150300.59.98.1
Timeline
Publicly disclosed
Nov 9, 2022
Added to Industry KEV feed
Jun 19, 2024
Added to CISA KEV
Jun 26, 2024
Added to CIRCL KEV
Jun 26, 2024
Added to ENISA EUVD
Jun 26, 2024
Last updated
Oct 14, 2026
Weakness Type
- CWE-416 Use After Free
References
- advisoryRHSA-2022:7444
- advisoryRHSA-2022:7683
- advisoryRHSA-2022:7933
- advisoryRHSA-2022:8267
- advisoryRHSA-2024:0724
FAQ
Common Questions.
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.
Affected: Linux (The Linux Kernel Organization) versions >= 3.16; Ubuntu Linux (Canonical) versions 14.04, 16.04, 18.04, 20.04, 22.04; Linux Kernel versions 6.0, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Jun 19, 2024.
Yes. It was added on Jun 26, 2024 with a federal remediation due date of Jul 17, 2024.
Public exploit code is available.
Fixed versions are available, including bpftool 4.18.0-425.3.1.el8, bpftool 5.10.118-12.ph4, bpftool 5.14.0-162.6.1.el9_1.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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