Security readout for executives and security teams
Plain-English summary
On affected RISC-V Linux systems, a low-privileged local user could access kernel virtual memory because required address checks were missing. Successful exploitation could compromise sensitive information, system integrity, and availability. The issue requires local access rather than direct network access.
Executive priority
Treat as a high-priority local privilege-boundary issue. Expedite remediation on multi-user, shared-compute, or otherwise exposed RISC-V systems. Internet-facing status alone does not determine risk because exploitation depends on local access.
Technical view
The RISC-V misaligned-access code used raw_copy_to_user() and raw_copy_from_user(), which do not perform access_ok() validation. Consequently, userspace could address kernel virtual memory. The supplied CVSS 3.1 score is 7.8, with low-complexity, low-privileged local exploitation and high confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is limited to RISC-V Linux systems running an affected kernel implementation. The bundle identifies versions around Linux 6.7 through 6.11, but its version formatting does not clearly establish every affected or fixed boundary. Distributor backports may also change exposure.
Exploitation context
The source bundle provides no evidence of public or active exploitation, and the CVE is not listed as KEV. Exploitation requires low-privileged local access, reducing direct remote exposure. Impact could still be severe on shared systems or systems where an attacker already has limited execution access.
Researcher notes
The core flaw and impact are clearly described, but the supplied affected-version array is ambiguous and no CWE is assigned. Determine branch applicability through the referenced Linux stable commits and distributor advisories. The bundle does not establish exploit availability, observed attacks, or precise backport coverage.
Mitigation direction
- Upgrade to a vendor-supported kernel containing the applicable referenced stable fix.
- Check distributor advisories for backports before relying solely on the reported kernel version.
- Prioritize shared RISC-V systems permitting untrusted or low-privileged local access.
- Until updated, restrict unnecessary local access and isolate affected systems according to business risk.
Validation and detection
- Inventory RISC-V systems and record their exact kernel builds and distribution packages.
- Confirm each installed kernel contains the applicable referenced fix or documented vendor backport.
- Verify updated systems successfully booted into the remediated kernel.
- Reassess local user and workload access on systems awaiting remediation.
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.
CVE-2024-46792 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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/a3b6ff6c896aee5ef9b581e40d0045ff04fcbc8cCVE reference, Linux
- https://git.kernel.org/stable/c/b686ecdeacf6658e1348c1a32a08e2e72f7c0f00CVE reference, Linux
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.