CVE-2025-13651Network attack vector

Technology-version disclosure via malformed web requests

Published Feb 11, 2026 · Updated Feb 11, 2026

Information disclosure in Zeus Web 6.1.31 allows remote attackers to obtain technology versions through malformed web requests. The web server returns technology-version details when malformed requests or requests lacking a valid response trigger its error handling. No authentication or user interaction is required; the disclosure supports application fingerprinting but does not expose application data.

CVSS severity6.9
Medium
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Zeus Web 6.1.31 allows remote attackers to obtain technology versions through malformed web requests. The web server returns technology-version details when malformed requests or requests lacking a valid response trigger its error handling. No authentication or user interaction is required; the disclosure supports application fingerprinting but does not expose application data.

The record

CVE
CVE-2025-13651
Published
Feb 11, 2026
Updated
Feb 11, 2026
Vendor
Microcom Sistemas Modulares
Product
Zeus Web
Classifications
CWE-497, CAPEC-224, CAPEC-170, CAPEC-541, T1595.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=6.1.31

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microcom Sistemas Modulares · Zeus Webversion=6.1.31

Published CVSS scores

6.9HackRTUCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-497Exposure of Sensitive System Information to an Unauthorized Control Sphere
CAPEC-224Fingerprinting
CAPEC-170Web Application Fingerprinting
CAPEC-541Application Fingerprinting
T1595.002Vulnerability Scanning

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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