CVE-2025-28128Public exploitNetwork attack vector

Unauthenticated OTP bypass via crafted request

Published Apr 25, 2025 · Updated Apr 25, 2025

Authentication bypass in Mytel Telecom Online Account System 1.0 allows remote attackers to bypass OTP verification via a crafted request. Public sources do not identify the endpoint, request field, or server-side validation error responsible for accepting the request. No credentials or user interaction are required; successful requests defeat the second-factor check, while the accessible account scope remains undisclosed.

CVSS severity7.0
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Mytel Telecom Online Account System 1.0 allows remote attackers to bypass OTP verification via a crafted request. Public sources do not identify the endpoint, request field, or server-side validation error responsible for accepting the request. No credentials or user interaction are required; successful requests defeat the second-factor check, while the accessible account scope remains undisclosed.

The record

CVE
CVE-2025-28128
Published
Apr 25, 2025
Updated
Apr 25, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-290
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.0CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing

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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