A memory leak problem was found in ctnetlink_create_conntrack in net/netfilter/nf_conntrack_netlink.c in the Linux Kernel. This issue may allow a local attacker with CAP_NET_ADMIN privileges to cause a denial of service (DoS) attack due to a refcount overflow.
CVE-2023-7192
Score 6.1 from GitHub Security Advisory published 2024-01-02. NVD baseline CVSS 5.5; sources differ by 0.6.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 4.4
- EG Score
- 6.1(medium)
- EPSS
- 22.0%
- KEV
- Not listed
Published
January 2, 2024
Last Modified
June 17, 2026
References (26)
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:0723
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:0725
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:1188
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:1250
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:1306
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:1367
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:1382
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:1404
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:2006
- secalert@redhathttps://access.redhat.com/errata/RHSA-2024:2008
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2023-7192
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2256279
- secalert@redhathttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=ac4893980bbe79ce383daf9a0885666a30fe4c83
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0723
- af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2024:0725
Vendor Advisories for CVE-2023-7192(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:1404Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security and bug fix update
- RHSA-2024:1306Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel-rt security and bug fix update
- RHSA-2024:1250Red Hat Product SecurityHigh
Red Hat Security Advisory: kernel security and bug fix update
Patch Availability(16)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ibm (6.8.0-1005) @ noble | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual (3.13.0.196.206) @ trusty | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual-lts-xenial (4.4.0.251.257) @ xenial | 2026-05-24 | ubuntu |
| ubuntu | linux-virtual-hwe-16.04-edge (4.15.0.222.6) @ xenial | 2026-05-24 | ubuntu |
| ubuntu | linux-tools-azure (4.15.0.1174.140) @ trusty | 2026-05-24 | ubuntu |
| ubuntu | lowlatency-5.4 (5.4.0-150) @ bionic | 2026-05-24 | ubuntu |
| redhat | kernel-rt-0:4.18.0-193.133.1.rt13.184.el8_2 | 2024-04-23 | redhat |
| redhat | kernel-0:4.18.0-193.133.1.el8_2 | 2024-04-23 | redhat |
| redhat | kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4 | 2024-03-19 | redhat |
| redhat | kernel-0:4.18.0-477.51.1.el8_8 | 2024-03-19 | redhat |
| redhat | kernel-0:4.18.0-305.125.1.el8_4 | 2024-03-19 | redhat |
| redhat | kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0 | 2024-03-13 | redhat |
| redhat | kernel-0:5.14.0-70.93.2.el9_0 | 2024-03-12 | redhat |
| redhat | kernel-0:4.18.0-372.95.1.el8_6 | 2024-03-06 | redhat |
| redhat | kernel-rt-0:5.14.0-284.52.1.rt14.337.el9_2 | 2024-02-07 | redhat |
| redhat | kernel-0:5.14.0-284.52.1.el9_2 | 2024-02-07 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(14)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2023-71922024-01-09
Kernel: refcount leak in ctnetlink_create_conntrack()
- Red HatRHSA-2024:0723MODERATE2023-02-10
RHSA-2024:0723 — Moderate
- Red HatRHSA-2024:0725MODERATE2023-02-10
RHSA-2024:0725 — Moderate
- Red HatRHSA-2024:1188MODERATE2023-02-10
RHSA-2024:1188 — Moderate
- Red HatRHSA-2024:1367MODERATE2023-02-10
RHSA-2024:1367 — Moderate
- Red HatRHSA-2024:1382MODERATE2023-02-10
RHSA-2024:1382 — Moderate
- Red HatRHSA-2024:2006MODERATE2023-02-10
RHSA-2024:2006 — Moderate
- Red HatRHSA-2024:2008MODERATE2023-02-10
RHSA-2024:2008 — Moderate
- UbuntuLSN-0101-1HIGH
Kernel Live Patch Security Notice
- UbuntuLSN-0105-1HIGH
Kernel Live Patch Security Notice
- UbuntuUSN-6645-1HIGH
Linux kernel vulnerability
- UbuntuUSN-6646-1HIGH
Linux kernel vulnerabilities
- UbuntuUSN-6647-1HIGH
Linux kernel vulnerabilities
- UbuntuUSN-6647-2HIGH
Linux kernel (Azure) vulnerabilities
Data Freshness Timeline
(refreshed 11× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-22 14:07 UTCEPSS rescore
- 2026-07-21 15:23 UTCEPSS rescore
- 2026-07-20 17:06 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:29 UTCEPSS rescore
- 2026-07-19 02:27 UTCEPSS rescore
- 2026-07-19 02:27 UTCEPSS rescore
- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-18 10:03 UTCEPSS rescore
- 2026-07-16 17:01 UTCEPSS rescore
- 2026-07-15 16:56 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-15 01:59 UTCEPSS rescore
- 2026-07-14 23:40 UTCOSV refresh
- 2026-07-13 22:28 UTCEPSS rescore
- 2026-07-13 22:28 UTCEPSS rescore
- 2026-07-13 06:11 UTCEPSS rescore
- 2026-07-12 05:45 UTCEPSS rescore
- 2026-07-12 05:45 UTCEPSS rescore
- 2026-07-11 08:26 UTCEPSS rescore
- 2026-07-09 19:08 UTCEPSS rescore
- 2026-07-07 13:45 UTCEPSS rescore
- 2026-07-07 13:44 UTCEPSS rescore
- 2026-07-06 16:26 UTCEPSS rescore
Show 72 moreShow fewer
- 2026-07-06 16:26 UTCEPSS rescore
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-06 02:22 UTCEPSS rescore
- 2026-07-05 02:29 UTCEPSS rescore
- 2026-07-04 06:29 UTCEPSS rescore
- 2026-07-01 15:05 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-30 23:21 UTCEPSS rescore
- 2026-06-29 14:05 UTCEPSS rescore
- 2026-06-28 14:06 UTCEPSS rescore
- 2026-06-28 14:06 UTCEPSS rescore
- 2026-06-28 04:55 UTCEPSS rescore
- 2026-06-27 03:07 UTCEPSS rescore
- 2026-06-27 00:37 UTCOSV refresh
- 2026-06-25 13:48 UTCEPSS rescore
- 2026-06-25 13:48 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 14:04 UTCEPSS rescore
- 2026-06-24 06:36 UTCNVD updateCVSS v3 → 4.4
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-22 14:24 UTCEPSS rescore
- 2026-06-22 14:24 UTCEPSS rescore
- 2026-06-21 14:55 UTCEPSS rescore
- 2026-06-21 14:55 UTCEPSS rescore
- 2026-06-21 01:58 UTCEPSS rescore
- 2026-06-21 01:58 UTCEPSS rescore
- 2026-06-19 19:24 UTCEPSS rescore
- 2026-06-19 19:24 UTCEPSS rescore
- 2026-06-18 17:51 UTCEPSS rescore
- 2026-06-17 17:51 UTCEPSS rescore
- 2026-06-16 17:51 UTCEPSS rescore
- 2026-06-16 17:51 UTCEPSS rescore
- 2026-06-15 17:47 UTCEPSS rescore
- 2026-06-14 23:16 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
- 2026-06-13 22:59 UTCEPSS rescore
- 2026-06-12 23:11 UTCEPSS rescore
- 2026-06-11 13:59 UTCEPSS rescore
- 2026-06-10 22:17 UTCEPSS rescore
- 2026-06-09 10:56 UTCOSV refresh
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-08 14:16 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-07 15:24 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 22:46 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-04 13:11 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-02 20:12 UTCEPSS rescore
- 2026-06-01 13:51 UTCEPSS rescore
- 2026-05-31 22:30 UTCEPSS rescore
- 2026-05-31 22:30 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
- 2026-05-31 00:15 UTCEPSS rescore
- 2026-05-29 13:43 UTCEPSS rescore
- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-28 13:44 UTCEPSS rescore
- 2026-05-27 13:40 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-26 13:43 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-24 11:11 UTCEG score recompute
- 2026-05-24 11:11 UTCVendor advisory
- 2026-05-24 11:11 UTCGHSA enrichment
Frequently asked(5)
What is CVE-2023-7192?
When was CVE-2023-7192 disclosed?
Is CVE-2023-7192 actively exploited?
What is the CVSS score of CVE-2023-7192?
How do I remediate CVE-2023-7192?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-7192
Is Your Infrastructure Affected by CVE-2023-7192?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.