PatchTheCVECVE-2023-5197: A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achiev
CVE-2023-5197 is a high-severity flaw (CVSS 7.8) affecting debian linux, linux kernel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-free. We recommend upgrading past commit f15f29fd4779be8a418b66e9d52979bb6d6c2325.
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 69%) |
| CISA exploited list | No |
| Weakness | CWE-416 |
| Published | 2023-09-27 |
| Last modified | 2026-11-02 |
Last updated 2026-11-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2023-5197?
debian linux: mitigate or apply the listed mitigation; linux kernel: upgrade to 5.10.198, 5.15.134, 6.1.56, 6.5.6. Exact commands for each OS are on this page.
Is CVE-2023-5197 being exploited?
CVE-2023-5197 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2023-5197 affect?
CVE-2023-5197 affects debian linux, linux kernel. Severity is high (CVSS 7.8). A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Addition and removal of rules from chain bindings within the same transaction causes leads to use-a
How urgent is CVE-2023-5197?
Priority 40/100. High severity; On your watchlist
Software pages
Linux kernel vulnerabilities · Debian vulnerabilities
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