PoC Index85,092 CVEs with PoCs

CVE-2023-3776

Use-after-free in Linux kernel's net/sched: cls_fw component

HIGH 7.8EPSS 0.5%

A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.

Affected
Linux · Kernel
CVSS v3.1 NVD
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
0.51% chance of exploitation in the next 30 days, 42nd percentile
Published
2023-07-21
Updated
2025-03-05

Proof-of-concept exploits (1)

Exploit collections (2)

Security advisories

References