CVE-2024-0193 | Kernel: netfilter: use-after-free in nft_trans_gc_catchall_sync leads to privilege escalation

A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFT_CHAIN object or NFT_OBJECT object, allowing a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system.

Published: 2024-01-02 Last update: 2026-06-05 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-0193 is rated Low Risk (37.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-0193

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.62% 0.06% -0.55%
2 2025-11-18 0.07% 0.62% +0.55%
3 2025-04-15 — 0.07% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-0193

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.8 5.9 [email protected]

Weakness enumeration for CVE-2024-0193

OS Trackers for CVE-2024-0193

vendor priority summary link
debian not yet assigned CVE-2024-0193 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-0193
redhat high — https://access.redhat.com/security/cve/CVE-2024-0193
suse high CVE-2024-0193 severity important: SUSE including 123 source package names (bpftool-7.2.0-362.24.1.el9_3, cluster-md-kmp-default, …), 404 product×package rows across 70 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 7.1, … (70 product lines)): Known Not Affected 305, Fixed 99. https://www.suse.com/security/cve/CVE-2024-0193/
ubuntu high CVE-2024-0193 high priority: Ubuntu including 167 source packages (linux, linux-allwinner, …), 1873 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1428, released 160, ignored 143, not-affected 140, needs-triage 2. https://ubuntu.com/security/CVE-2024-0193

Affected software / configurations for CVE-2024-0193

Vendor Product Version Raw CPE
redhat codeready_linux_builder_for_eus 9.2 cpe:2.3:a:redhat:codeready_linux_builder_for_eus:9.2:*:*:*:*:*:x64:*
redhat codeready_linux_builder_for_ibm_z_systems_eus 9.2_s390x cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:9.2_s390x:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_power_little_endian_eus 9.2 cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:9.2:*:*:*:*:*:*:*
redhat enterprise_linux 9.2 cpe:2.3:o:redhat:enterprise_linux:9.2:*:*:*:*:*:arm64:*
redhat enterprise_linux_for_els 9.2 cpe:2.3:o:redhat:enterprise_linux_for_els:9.2:*:*:*:*:*:arm64:*
redhat enterprise_linux_for_els 9.2 cpe:2.3:o:redhat:enterprise_linux_for_els:9.2:*:*:*:*:*:x64:*
redhat enterprise_linux_for_eus 9.2 cpe:2.3:o:redhat:enterprise_linux_for_eus:9.2:*:*:*:*:*:arm64:*
redhat enterprise_linux_for_eus 9.2 cpe:2.3:o:redhat:enterprise_linux_for_eus:9.2:*:*:*:*:*:x64:*
redhat enterprise_linux_for_ibm_z_systems 9.2_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.2_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_els 9.2 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_els:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 9.2 cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_els 9.2 cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_els:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 9.2 cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_for_update_services_for_sap_solutions 9.2 cpe:2.3:o:redhat:enterprise_linux_for_update_services_for_sap_solutions:9.2:*:*:*:*:*:x64:*
redhat enterprise_linux_server_aus 9.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:9.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.2 cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.2:*:*:*:*:*:*:*
redhat codeready_linux_builder 9.0 cpe:2.3:a:redhat:codeready_linux_builder:9.0:*:*:*:*:*:aarch64:*
redhat codeready_linux_builder_for_eus 9.4 cpe:2.3:a:redhat:codeready_linux_builder_for_eus:9.4:*:*:*:*:*:arm64:*
redhat codeready_linux_builder_for_eus 9.4 cpe:2.3:a:redhat:codeready_linux_builder_for_eus:9.4:*:*:*:*:*:x64:*
redhat codeready_linux_builder_for_eus 9.6 cpe:2.3:a:redhat:codeready_linux_builder_for_eus:9.6:*:*:*:*:*:arm64:*
redhat codeready_linux_builder_for_eus 9.6 cpe:2.3:a:redhat:codeready_linux_builder_for_eus:9.6:*:*:*:*:*:x64:*
redhat codeready_linux_builder_for_ibm_z_systems 9.0_s390x cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems:9.0_s390x:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_ibm_z_systems_eus 9.4_s390x cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:9.4_s390x:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_ibm_z_systems_eus 9.6_s390x cpe:2.3:a:redhat:codeready_linux_builder_for_ibm_z_systems_eus:9.6_s390x:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_power_little_endian 9.0_ppc64le cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian:9.0_ppc64le:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_power_little_endian_eus 9.4_ppc64le cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:9.4_ppc64le:*:*:*:*:*:*:*
redhat codeready_linux_builder_for_power_little_endian_eus 9.6_ppc64le cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian_eus:9.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:arm64:*
redhat enterprise_linux 9.0 cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:x64:*
redhat enterprise_linux_for_arm_64 9.4_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64:9.4_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64 9.6_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64:9.6_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_els 9.4_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_els:9.4_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_els 9.6_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_els:9.6_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 9.4_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.4_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_arm_64_eus 9.6_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64_eus:9.6_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_for_els 9.4 cpe:2.3:o:redhat:enterprise_linux_for_els:9.4:*:*:*:*:*:x64:*
redhat enterprise_linux_for_els 9.6 cpe:2.3:o:redhat:enterprise_linux_for_els:9.6:*:*:*:*:*:x64:*
redhat enterprise_linux_for_eus 9.4 cpe:2.3:o:redhat:enterprise_linux_for_eus:9.4:*:*:*:*:*:x64:*
redhat enterprise_linux_for_eus 9.6 cpe:2.3:o:redhat:enterprise_linux_for_eus:9.6:*:*:*:*:*:x64:*
redhat enterprise_linux_for_ibm_z_systems 9.0_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.0_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 9.4_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.4_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems 9.6_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:9.6_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_els 9.4_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_els:9.4_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_els 9.6_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_els:9.6_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 9.4_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.4_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_ibm_z_systems_eus 9.6_s390x cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:9.6_s390x:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_els 9.4_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_els:9.4_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_els 9.6_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_els:9.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 9.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.0_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 9.4_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.4_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_power_little_endian_eus 9.6_ppc64le cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:9.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_update_services_for_sap_solutions 9.4 cpe:2.3:o:redhat:enterprise_linux_for_update_services_for_sap_solutions:9.4:*:*:*:*:*:x64:*
redhat enterprise_linux_for_update_services_for_sap_solutions 9.6 cpe:2.3:o:redhat:enterprise_linux_for_update_services_for_sap_solutions:9.6:*:*:*:*:*:x64:*
redhat enterprise_linux_server_aus 9.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:9.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 9.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:9.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.4_ppc64le cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.4_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.6_ppc64le cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.6_ppc64le:*:*:*:*:*:*:*
redhat enterprise_linux_for_update_services_for_sap_solutions 9.0 cpe:2.3:o:redhat:enterprise_linux_for_update_services_for_sap_solutions:9.0:*:*:*:*:*:x64:*
redhat enterprise_linux_for_arm_64 9.0_aarch64 cpe:2.3:o:redhat:enterprise_linux_for_arm_64:9.0_aarch64:*:*:*:*:*:*:*
redhat enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions 9.0_ppc64le cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:9.0_ppc64le:*:*:*:*:*:*:*
linux linux_kernel >= 5.10.198, < 5.10.206 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.15.118, < 5.15.146 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.1.35, < 6.1.71 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.3.9, < 6.6.10 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
redhat openshift_logging >= 5.0, < 5.8.6 cpe:2.3:a:redhat:openshift_logging:*:*:*:*:*:*:*:*

References for CVE-2024-0193

cvelogic Threat Intelligence