Use After Free in Linux
CVE-2023-52927
In the Linux kernel, the following vulnerability has been resolved: netfilter: allow exp not to be removed in nf_ct_find_expectation Currently nf_conntrack_in() calling nf_ct_find_expectation() will remove the exp from the hash table. Ho…
Vulnerability class: Use-After-Free
EPSS: 0.003 (21.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 1bc91a5ddf3eaea0e0ea957cccf3abdcfcace00e, 5.18, 0
- Linux Linux_kernel
- Debian Debian_linux — versions 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Broken Link)
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Broken Link)
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Technical Description, Exploit)
- af854a3a-2127-422b-91ae-364da2661108 (Issue Tracking, Third Party Advisory)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2023-52927?
- CVE-2023-52927 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2025-03-14.
- How severe is CVE-2023-52927?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-52927 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.