CVE-2025-56764

MEDIUM 1 PoC
MEDIUM Priority: 0.01 BB Relevance: 81/100
Published: 2025-09-29 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: None
A: None

Description

Trivision NC-227WF firmware 5.80 (build 20141010) login mechanism reveals whether a username exists or not by returning different error messages ("Unknown user" vs. "Wrong password"), allowing an attacker to enumerate valid usernames.

Weakness Classification (1)

Affected Software (1)

Proof of Concept (1)

Bug Bounty Relevance

81 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

5.3 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS — Exploitation Probability

0.26%
Raw Score 0.002610
Percentile 18.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00261
2026-11-12
0.00261
2026-11-10
0.00261
2026-11-09
0.00261
2026-11-08
0.00261
2026-11-07
0.00261
2026-11-06
0.00261
2026-11-05
0.00261

Intelligence Sources

nvd ref →