CVE-2025-4890Public exploit

Local crash via unbounded login input

Published May 18, 2025 · Updated May 19, 2025

Stack-based buffer overflow in LoginUser in code-projects Tourism Management System 1.0 allows local users to crash the application. LoginUser reads username and password input with unbounded scanf conversions into separate 100-byte stack buffers, so input beyond 99 characters overwrites adjacent stack memory. Access to the program's local login interface is required; the public proof of concept demonstrates an access-violation crash, while code execution is not demonstrated.

CVSS severity4.8
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack-based buffer overflow in LoginUser in code-projects Tourism Management System 1.0 allows local users to crash the application. LoginUser reads username and password input with unbounded scanf conversions into separate 100-byte stack buffers, so input beyond 99 characters overwrites adjacent stack memory. Access to the program's local login interface is required; the public proof of concept demonstrates an access-violation crash, while code execution is not demonstrated.

The record

CVE
CVE-2025-4890
Published
May 18, 2025
Updated
May 19, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, CWE-121, CWE-119
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 19, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.8VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo