SARA / Free Tools / KEV / CVE-2022-2586

CVE-2022-2586 on CISA KEV

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.

CISA KEV — Actively Exploited

Linux Kernel Use-After-Free Vulnerability

Vendor / Product
— / Linux / Kernel
Added to KEV
2024-06-26
BOD 22-01 due
2024-07-17
Ransomware use
Unknown
CVSS / EPSS
5.3 MEDIUM · EPSS 2.22%

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

03Notes & references

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

VendorProductVersions
The Linux Kernel Organizationlinux0

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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Programmatic KEV data?
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