Security readout for executives and security teams
Plain-English summary
This is a Linux kernel availability issue in netfilter’s nft_socket cgroup handling. A local low-privileged user can reach an internal warning condition from userspace, which may disrupt the system, especially where kernel warnings are treated severely. It is not described as data theft or remote compromise.
Executive priority
Handle through normal kernel patch governance, with higher priority for shared systems where untrusted local users or workloads exist. This is not currently evidenced as actively exploited, but it can affect availability and should not be left indefinitely on exposed multi-tenant infrastructure.
Technical view
The CVE describes a reachable WARN_ON_ONCE in netfilter nft_socket when maximum cgroup level handling is hit. The fix removes the unnecessary warning. CVSS 3.1 is 5.5, local attack vector, low privileges, no user interaction, no confidentiality or integrity impact, and high availability impact.
Likely exposure
Exposure is most relevant to Linux hosts running affected kernel builds with local users, shell access, or multi-tenant workloads. The source bundle identifies Linux kernel stable fixes and Debian LTS coverage, but does not provide a complete distribution-by-distribution affected matrix.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The vulnerability is reachable from userspace, but the provided sources do not include public exploit details. Treat it as a local denial-of-service risk rather than a remote intrusion signal.
Researcher notes
Evidence supports CWE-617 reachable assertion and local availability impact. The record’s version data is not enough to safely infer every affected downstream package. Validate against distro advisories and kernel commit inclusion rather than relying only on upstream version labels.
Mitigation direction
- Apply Linux kernel updates containing the referenced stable fixes.
- Check your distribution’s advisory and package status before deployment.
- Prioritize multi-user, container, build, and shared hosting systems.
- Limit local access on unpatched systems where operationally possible.
- Review Debian LTS guidance if running affected Debian kernels.
Validation and detection
- Inventory Linux kernel versions across servers and endpoints.
- Compare installed kernels against vendor advisories and stable fix availability.
- Confirm patched systems boot into the updated kernel.
- Review whether kernel warning handling increases availability impact.
- Track exceptions for systems that cannot be patched quickly.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-617: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-56783 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/7064a6daa4a700a298fe3aee11dea296bfe59fc4CVE reference, Linux
- https://git.kernel.org/stable/c/2f9bec0a749eb646b384fde0c7b7c24687b2ffaeCVE reference, Linux
- https://git.kernel.org/stable/c/e227c042580ab065edc610c9ddc9bea691e6fc4dCVE reference, Linux
- https://git.kernel.org/stable/c/b7529880cb961d515642ce63f9d7570869bbbdc3CVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.htmlCVE reference, CVE
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Reachable Assertion
Reachable Assertion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.