CVE-2024-20017
Published: 04 March 2024
Summary
CVE-2024-20017 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Mediatek Software Development Kit. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 1.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2024-20017 is an out-of-bounds write vulnerability in the wlan service stemming from improper input validation. The flaw is tracked under CWE-20 and CWE-787 and affects MediaTek Wi-Fi implementations in routers, smartphones, and other chipsets that rely on this service. It carries a CVSS 3.1 score of 9.8.
The issue can be triggered remotely by an unauthenticated attacker over the network without any user interaction, resulting in arbitrary code execution with full privileges on the affected component. Public exploit research has demonstrated multiple attack paths that achieve this outcome.
MediaTek’s March 2024 security bulletin lists the issue as MSV-1132 and supplies the corresponding patch identifier WCNCR00350938 for affected platforms.
EPSS for the CVE rose from a low baseline to a peak of 0.7278 (currently 0.6816), coinciding with the publication of detailed technical analyses and proof-of-concept material that highlight ongoing exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-17732
Vulnerability details
In wlan service, there is a possible out of bounds write due to improper input validation. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation Patch ID: WCNCR00350938; Issue…
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ID: MSV-1132.
- 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.
Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.
Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.
Directly implements checks on information inputs to reject invalid data before processing.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.
Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.