CVE-2024-34905Public exploitNetwork attack vector

Unauthenticated denial of service via oversized password hashing

Published May 16, 2024 · Updated Feb 13, 2025

Uncontrolled resource consumption in FlyFish 3.0.0 allows remote attackers to interrupt the service via an oversized login password. BaseUserController accepts the unbounded password value and performs MD5 hashing, driving CPU and memory consumption as input length grows. The unauthenticated login endpoint is sufficient to make the server progressively unresponsive and ultimately crash, with no reported confidentiality or integrity impact.

CVSS severity7.5
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uncontrolled resource consumption in FlyFish 3.0.0 allows remote attackers to interrupt the service via an oversized login password. BaseUserController accepts the unbounded password value and performs MD5 hashing, driving CPU and memory consumption as input length grows. The unauthenticated login endpoint is sufficient to make the server progressively unresponsive and ultimately crash, with no reported confidentiality or integrity impact.

The record

CVE
CVE-2024-34905
Published
May 16, 2024
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

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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