Answer in brief
CVE-2026-75492 records a High severity (CVSS 8.7) vulnerability in Cudy TR3000 before 2.5.42 Stack Buffer Overflow via stun_client UDP Parser. 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 8.7. 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 an unauthenticated stack buffer overflow vulnerability in the stun_client TR-111 UDP Connection Request parser that parses requests before verifying username or HMAC. Remote attackers can send a single crafted UDP datagram lacking a space in the request line, causing strncpy() to overflow a 10-byte stack buffer and crash stun_client for denial of service.
Quoted source text, attributed separately from HOL analysis.