CVE-2021-3715
A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of...
- Published
- Mar 2, 2022
- Updated
- Aug 3, 2024
- Assigning CNA
- redhat
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 28.9%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
A flaw was found in the "Routing decision" classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition. This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Sources
3- CVE-2022-2588Exploit
Detailed write-up and exploit code for CVE-2022-2588, a Linux kernel use-after-free in route4_change leading to privilege escalation via double-free and credential swapping.
- CVE-2022-2588Exploit
Exploit code for CVE-2022-2588
- CVE-2022-2588Exploit
exploit for CVE-2022-2588
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