Answer in brief
CVE-2026-75488 records a High severity (CVSS 8.2) vulnerability in Cudy TR3000 before 2.5.42 Stack Buffer Overflow via CWMP Basic Authorization Builder. 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 the CWMP client that allows a malicious ACS to corrupt stack memory via oversized credentials. Attackers controlling the ACS can send Username and Password values up to 256 bytes in TR-069 Download or Upload requests, overflowing 128-byte stack buffers and crashing the CWMP process.
Quoted source text, attributed separately from HOL analysis.