CVE-2025-4347
Published: 06 May 2025
Summary
CVE-2025-4347 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Dlink Dir-600L Firmware. Its CVSS base score is 8.7 (High).
Operationally, ranked in the top 21.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A buffer overflow vulnerability exists in the D-Link DIR-600L wireless router up to firmware version 2.07B01. The issue is located in the formWlSiteSurvey function, where improper handling of the host argument allows an attacker to write outside the bounds of a buffer. The flaw is tracked as CWE-119 and CWE-120 and carries a CVSS 4.0 score of 8.7, reflecting network-accessible attack vectors with low complexity and no required user interaction.
An authenticated remote attacker can supply a crafted host value to the affected function and trigger memory corruption. Successful exploitation grants the attacker the ability to compromise confidentiality, integrity, and availability on the device, potentially leading to arbitrary code execution or full device takeover.
The product line is explicitly noted as unsupported by the maintainer, with references pointing to the vendor site and public vulnerability records that contain no remediation guidance or patches. The associated EPSS score remains flat at 0.0115 with no observed increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-13581
Vulnerability details
A vulnerability was found in D-Link DIR-600L up to 2.07B01. It has been declared as critical. Affected by this vulnerability is the function formWlSiteSurvey. The manipulation of the argument host leads to buffer overflow. The attack can be launched remotely.…
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This vulnerability only affects products that are no longer supported by the maintainer.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Managed runtimes used by platform-independent applications (e.g., JVM, CLR) enforce memory safety, preventing most buffer overflows that require direct memory manipulation.
Ongoing control assessments and code testing (static/dynamic analysis, fuzzing) surface memory buffer restriction failures, which are then remediated before release.
Memory protections (e.g., W^X, ASLR) make exploitation of buffer-boundary violations far harder to turn into code execution.
Detects exploitation attempts that produce memory corruption, crashes, or anomalous behavior.