EasyCafe Server 2.2.14 Remote File Disclosure via Opcode 0x43

published 2025-07-16 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21751

cvss: 8.8; version 4.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.4%; EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits: 1; Metasploit

A remote file disclosure vulnerability exists in EasyCafe Server 2.2.14, exploitable by unauthenticated remote attackers via TCP port 831. The server listens for a custom protocol where opcode 0x43 can be used to request arbitrary files by absolute path. If the file exists and is accessible, its content is returned without authentication. This flaw allows attackers to retrieve sensitive files such as system configuration, password files, or application data.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: yes
Technical impact: partial
Assessed: 15 mo ago (2025-07-17)

Exploit prediction

2.41% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Metasploit auxiliary/scanner/misc/easycafe_server_fileaccess EasyCafe Server Remote File Access metasploit auxiliary, normal rank
raw.githubusercontent.com https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/misc/easycafe_server_fileaccess.rb referenced PoC, tagged "exploit" by a source, unverified
exploit-db.com https://www.exploit-db.com/exploits/39102 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.8	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	4.0	8.8	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

Tinasoft EasyCafe Server

Classification

Weakness

CWE-668 Exposure of Resource to Wrong Sphere
CWE-306 Missing Authentication for Critical Functionality

References

raw.githubusercontent.com /rapid7/metasploit-framework/master/modules/auxiliary/scanner/misc/easycafe_server_fileaccess.rb
exploit
exploit-db.com /exploits/39102
exploit
vulncheck.com /advisories/easy-cafe-server-remote-file-disclosure
third-party-advisory

Sources

CVE List CVE-2025-34119
NVD CVE-2025-34119

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary