CVE-2022-44373
Published: 07 December 2022
Summary
CVE-2022-44373 is a high-severity Out-of-bounds Write (CWE-787) vulnerability in Trendnet Tew-820Ap Firmware. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 10.2% 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 stack overflow vulnerability exists in the TrendNet Wireless AC Easy-Upgrader TEW-820AP hardware device running version v1.0R with firmware 1.01.B01. The flaw is tracked as CVE-2022-44373 with CWE-787 and carries a CVSS 3.1 base score of 8.8 reflecting network attack vector, low complexity, and low required privileges.
An attacker with network access and low-level credentials can supply crafted input that overflows a stack buffer, resulting in remote code execution with full control over confidentiality, integrity, and availability on the affected access point.
EPSS for the CVE rose from a low baseline to a peak of 0.0973 on 2025-12-11 before receding to the current value of 0.0484, indicating measurable post-disclosure exploitation interest that later subsided. Public references consist of technical write-ups hosted on GitHub that document the issue but contain no vendor advisory or patch information.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-47318
Vulnerability details
A stack overflow vulnerability exists in TrendNet Wireless AC Easy-Upgrader TEW-820AP (Version v1.0R, firmware version 1.01.B01) which may result in remote code execution.
- 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.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.