Security readout for executives and security teams
Plain-English summary
Selected DrayTek Vigor routers can accept crafted APP Enforcement modules on vulnerable firmware, potentially allowing arbitrary code execution. For an organization, this turns an edge networking device into a possible foothold if an attacker can reach the vulnerable path described by the CVE.
Executive priority
Treat this as a high-priority network infrastructure issue. The risk is code execution on routers, which can affect traffic control, availability, and downstream security monitoring. Prioritize owned DrayTek Vigor assets on vulnerable firmware.
Technical view
CVE-2024-41340 is a CWE-434 unrestricted upload issue affecting multiple DrayTek Vigor firmware branches. The CVSS 3.1 vector is AV:L/AC:L/PR:N/UI:N with high confidentiality, integrity, and availability impact, producing an 8.4 high score. The CVE describes arbitrary code execution through crafted APP Enforcement module uploads.
Likely exposure
Exposure is likely limited to organizations running the listed DrayTek Vigor models below the fixed firmware versions. The CVSS vector states local attack vector, so reachable management or local-network conditions should be reviewed carefully.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The public CVE description confirms the vulnerable behavior and code execution impact, but does not provide exploitation prevalence or observed attacker use.
Researcher notes
The CVE names many affected firmware branches, but the provided bundle has limited technical detail beyond crafted APP Enforcement module upload and arbitrary code execution. Avoid assuming remote exploitation, authentication paths, or exploit availability without additional vendor or advisory evidence.
Mitigation direction
- Inventory DrayTek Vigor models and firmware versions against the affected list.
- Upgrade affected devices to the fixed firmware version or later named for each model.
- Check current DrayTek vendor guidance for model-specific firmware and operational notes.
- Restrict access to router management surfaces while remediation is planned.
- Prioritize internet-edge and business-critical routers first.
Validation and detection
- Confirm each device model matches or is outside the CVE affected list.
- Record firmware versions and compare them with the fixed thresholds in the CVE.
- Verify upgraded devices report the intended fixed firmware version.
- Review router logs for unexpected APP Enforcement module activity where available.
- Confirm compensating access controls are in place for management interfaces.
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-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2024-41340 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
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/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:N/UI:N/S:U/C:H/I:H/A:H2.55.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:L/AC:L/PR:N/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://medium.com/faraday/advisory-multiple-vulnerabilities-affecting-draytek-routers-78a6cb8b3946CVE reference, mitre
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.