CVE-2023-27279Network attack vector

Authenticated service interruption via unrestricted API requests

Published Apr 19, 2024 · Updated Aug 2, 2024

Improper API interaction controls in IBM Aspera Faspex 5.0.0 through 5.0.7 allow remote authenticated users to interrupt service. The Faspex 5 API accepts repeated authenticated requests without enforcing rate limits on interaction frequency. A valid low-privilege account and network access to the API are required; sustained requests exhaust service capacity and deny availability.

CVSS severity6.5
Medium
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper API interaction controls in IBM Aspera Faspex 5.0.0 through 5.0.7 allow remote authenticated users to interrupt service. The Faspex 5 API accepts repeated authenticated requests without enforcing rate limits on interaction frequency. A valid low-privilege account and network access to the API are required; sustained requests exhaust service capacity and deny availability.

The record

CVE
CVE-2023-27279
Published
Apr 19, 2024
Updated
Aug 2, 2024
Vendor
IBM
Product
IBM Aspera Faspex
Classifications
CWE-799, T1499.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=5.0.0
  2. Affected versionversion=5.0.0 <=5.0.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · IBM Aspera Faspexversion=5.0.0; version=5.0.0 <=5.0.7

Published CVSS scores

6.5IBM CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5IBM CorporationCVSS:3.0/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-799Improper Control of Interaction Frequency
T1499.002Service Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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