Security readout for executives and security teams
Plain-English summary
CVE-2024-46740 is a Linux kernel Binder flaw that can let a local low-privileged user corrupt kernel object handling and trigger use-after-free behavior. The CVSS score is 7.8 because successful exploitation could affect confidentiality, integrity, and availability. The sources do not show active exploitation or KEV listing.
Executive priority
Treat this as a high-priority kernel maintenance item, especially for shared systems or platforms allowing local untrusted code. There is no sourced evidence of active exploitation, but the impact is broad if exploitation succeeds. Patch through normal emergency or accelerated kernel update channels based on local exposure.
Technical view
Binder transaction processing copies raw data between objects without a bounds check. Oversized raw data can overwrite the offsets section, corrupt unwind indexes, decrement arbitrary Binder nodes, and prematurely free objects still in use. The kernel fix adds a boundary check so raw data copying stays within the data section.
Likely exposure
Exposure is most likely on Linux systems running affected kernel versions or vendor kernels that include the vulnerable Binder code. The attack vector is local, requires low privileges, and needs no user interaction. Systems without Binder enabled or reachable by local untrusted users are likely lower exposure, but the source data does not define configuration scope.
Exploitation context
The CVE record gives CVSS AV:L/PR:L/UI:N and CWE-416. It includes a KASAN use-after-free report but no public exploit confirmation. CISA KEV status in the bundle is false, so active exploitation should not be assumed from these sources.
Researcher notes
The core bug is an unchecked raw data copy in Binder transaction handling that corrupts offsets used during error unwinding. The resulting arbitrary node decrements can create dangling pointers. Source evidence supports a local privilege-context memory safety issue, but does not provide exploitability details beyond KASAN evidence and CVSS scoring.
Mitigation direction
- Update to a kernel containing the referenced stable Binder fixes.
- Apply relevant Debian LTS kernel updates if running Debian.
- For vendor kernels, request the vendor backport status for CVE-2024-46740.
- Prioritize systems where untrusted local users or workloads can access Binder.
- Monitor the CVE record and kernel stable updates for branch-specific guidance.
Validation and detection
- Inventory running kernel versions across Linux assets.
- Check whether each kernel includes the referenced Binder stable commit for its branch.
- Confirm whether Binder is enabled or exposed on higher-risk systems.
- Review distro advisories, especially Debian LTS notices, for package-level fix status.
- Look for kernel crash telemetry consistent with Binder use-after-free symptoms.
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-416: 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-2024-46740 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:H1.85.9CISA-ADPVulnerability 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/5a32bfd23022ffa7e152f273fa3fa29befb7d929CVE reference, Linux
- https://git.kernel.org/stable/c/3a8154bb4ab4a01390a3abf1e6afac296e037da4CVE reference, Linux
- https://git.kernel.org/stable/c/eef79854a04feac5b861f94d7b19cbbe79874117CVE reference, Linux
- https://git.kernel.org/stable/c/4f79e0b80dc69bd5eaaed70f0df1b558728b4e59CVE reference, Linux
- https://git.kernel.org/stable/c/1f33d9f1d9ac3f0129f8508925000900c2fe5bb0CVE reference, Linux
- https://git.kernel.org/stable/c/109e845c1184c9f786d41516348ba3efd9112792CVE reference, Linux
- https://git.kernel.org/stable/c/4df153652cc46545722879415937582028c18af5CVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlCVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.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.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.