Answer in brief
CVE-2026-75493 records a High severity (CVSS 8.2) vulnerability in Cudy TR3000 before 2.5.42 Stack Buffer Overflow via obuspa KeyPassphrase Getter. The current sources do not mark it as known exploited. The current feed maps Shenzhen Cudy Technology Co., Ltd./TR3000 1.0 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Shenzhen Cudy Technology Co., Ltd./TR3000 1.0 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Shenzhen Cudy Technology Co., Ltd./TR3000 1.0generic | >=0 <2.5.42 | 2.5.42 |
Published upstream
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 13, 2026
Cudy TR3000 before 2.5.42 contains a stack buffer overflow vulnerability in an obuspa getter for the TR-098 WLANConfiguration KeyPassphrase parameter, which copies the stored value with strcpy() into a 4,096-byte stack buffer without a length check. A malicious or compromised ACS can set a 5,000-byte passphrase via SetParameterValues, and a later read of the parameter overflows the buffer and crashes obuspa, causing denial of service.
Quoted source text, attributed separately from HOL analysis.