CVE-2025-3728Public exploit

Memory corruption via unbounded username scan

Published Apr 16, 2025 · Updated Apr 16, 2025

Buffer overflow in the Login function in SourceCodester Simple Hotel Booking System 1.0 allows local users to corrupt process memory. The function reads the uname value with an unbounded scanf operation into a 10-byte character buffer, allowing longer input to overwrite adjacent memory. The published reproduction requires local access and disables compiler stack protection; it demonstrates an overwrite but not code execution.

CVSS severity7.8
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the Login function in SourceCodester Simple Hotel Booking System 1.0 allows local users to corrupt process memory. The function reads the uname value with an unbounded scanf operation into a 10-byte character buffer, allowing longer input to overwrite adjacent memory. The published reproduction requires local access and disables compiler stack protection; it demonstrates an overwrite but not code execution.

The record

CVE
CVE-2025-3728
Published
Apr 16, 2025
Updated
Apr 16, 2025
Vendor
Online Computer and Laptop Store Project
Product
Simple Hotel Booking System
Classifications
CWE-120, CWE-119
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record 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=1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Online Computer and Laptop Store Project · Simple Hotel Booking Systemversion=1.0

Published CVSS scores

4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
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
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
7.8NIST NVDCVSS: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.

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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-120Buffer Copy without Checking Size of Input ('Classic 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

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Your stack

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