CVE-2025-69615Network attack vector

Unauthenticated MFA bypass via header-manipulated throttling

Published Mar 10, 2026 · Updated Mar 10, 2026

Authentication bypass in Deutsche Telekom Account Management Portal 2025-10-24 and earlier allows remote attackers to bypass 2FA. The 2FA verification endpoint applies insufficient server-side rate limiting, and crafted HTTP headers bypass throttling to permit unlimited code guesses. No authentication or user interaction is required, and a successful guess exposes protected account data and permits account changes without interrupting the service.

CVSS severity9.1
Critical
EPSS probability0.45%
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 Deutsche Telekom Account Management Portal 2025-10-24 and earlier allows remote attackers to bypass 2FA. The 2FA verification endpoint applies insufficient server-side rate limiting, and crafted HTTP headers bypass throttling to permit unlimited code guesses. No authentication or user interaction is required, and a successful guess exposes protected account data and permits account changes without interrupting the service.

The record

CVE
CVE-2025-69615
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-307, T1110
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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?

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

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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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 exploitUnconfirmed

Weakness, pattern, technique

CWE-307Improper Restriction of Excessive Authentication Attempts
T1110Brute Force

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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