CVE-2025-4145
Published: 01 May 2025
Summary
CVE-2025-4145 is a high-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Netgear Ex6200 Firmware. Its CVSS base score is 8.7 (High).
Operationally, ranked in the top 20.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A critical buffer overflow vulnerability, tracked as CVE-2025-4145 and assigned CWE-119 and CWE-120, affects the Netgear EX6200 wireless range extender running firmware version 1.0.3.94. The flaw resides in the function sub_3D0BC, where improper handling of the host argument allows an attacker to overflow a buffer. The issue carries a CVSS 4.0 score of 8.7 and can be triggered over the network without user interaction.
An authenticated remote attacker can supply a crafted host value to the affected function, leading to memory corruption that may result in arbitrary code execution or a denial of service. Because the vendor did not respond to early disclosure, no official patch or workaround has been issued.
Public references consist of a technical write-up and proof-of-concept on GitHub along with VulDB entries; the Netgear site contains no advisory. The EPSS score has remained flat at 0.0128 with no observed rise since publication, indicating limited exploitation interest to date.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-12789
Vulnerability details
A vulnerability, which was classified as critical, has been found in Netgear EX6200 1.0.3.94. This issue affects the function sub_3D0BC. The manipulation of the argument host leads to buffer overflow. The attack may be initiated remotely. The vendor was contacted…
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early about this disclosure but did not respond in any way.
- 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.