7.8

CVE-2022-50213: netfilter: nf_tables: do not allow SET_ID to refer to another table

Modified
AliasesUBUNTU-CVE-2022-50213DEBIAN-CVE-2022-50213
Published 18-06-2025Last modified 05-08-2026

Vulnerability summary

CVE-2022-50213 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 7
RHSA-2022:7683RHSA-2022:8267RHSA-2024:0724RHSA-2024:3421SUSE-SU-2025:02264-1SUSE-SU-2025:02308-1

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: do not allow SET_ID to refer to another table When doing lookups for sets on the same batch by using its ID, a set from a different table can be used. Then, when the table is removed, a reference to the set may be kept after the set is freed, leading to a potential use-after-free. When looking for sets by ID, use the table that was used for the lookup by name, and only return sets belonging to that same table. This fixes CVE-2022-2586, also reported as ZDI-CAN-17470.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

Increase +0.01 pp

From 0.24% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu117 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 958bee14d0718ca7a5002c0f48a099d1d345812a, < 77d3b5038b7462318f5183e2ad704b01d57215a2 | ≥ 958bee14d0718ca7a5002c0f48a099d1d345812a, < fab2f61cc3b0e441b1749f017cfee75f9bbaded7 | ≥ 958bee14d0718ca7a5002c0f48a099d1d345812a, < 1a4b18b1ff11ba26f9a852019d674fde9d1d1cff | ≥ 958bee14d0718ca7a5002c0f48a099d1d345812a, < faafd9286f1355c76fe9ac3021c280297213330e | ≥ 958bee14d0718ca7a5002c0f48a099d1d345812a, < f4fa03410f7c5f5bd8f90e9c11e9a8c4b526ff6f | ≥ 958bee14d0718ca7a5002c0f48a099d1d345812a, < 0d07039397527361850c554c192e749cfc879ea9 | ≥ 958bee14d0718ca7a5002c0f48a099d1d345812a, < 470ee20e069a6d05ae549f7d0ef2bdbcee6a81b2 | 3.16
  • linux_kernel≥ 3.16, < 4.19.256 | ≥ 4.20, < 5.4.211 | ≥ 5.5, < 5.10.137 | ≥ 5.11, < 5.15.61 | ≥ 5.16, < 5.18.18 | ≥ 5.19, < 5.19.2
Debian1 product
  • linux< 6.0.2-1

3 vendors · 120 products

References

10 links