CVE-2024-40130Public exploit

Test-process crash via undersized argument array

Published Jul 16, 2024 · Updated Aug 2, 2024

A dynamic stack buffer overflow in Open5GS 2.6.4 test runners allows local users to crash an AddressSanitizer-enabled test process. Test entry points allocate argv_out one pointer too small before abts_main appends arguments and a terminator, causing an eight-byte write beyond the stack array. Reachability requires a local source build and test-suite execution; public evidence does not show exposure in installed network services.

CVSS severity9.8
Critical
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A dynamic stack buffer overflow in Open5GS 2.6.4 test runners allows local users to crash an AddressSanitizer-enabled test process. Test entry points allocate argv_out one pointer too small before abts_main appends arguments and a terminator, causing an eight-byte write beyond the stack array. Reachability requires a local source build and test-suite execution; public evidence does not show exposure in installed network services.

The record

CVE
CVE-2024-40130
Published
Jul 16, 2024
Updated
Aug 2, 2024
Vendor
Open5GS
Product
Open5GS
Classifications
CWE-120, CWE-787
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 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=v2.6.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Open5GS · Open5GSversion=v2.6.4

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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-787Out-of-bounds Write

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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