CVE-2024-3186Network attack vector

Authenticated service crash via malicious JST evaluation

Published Oct 17, 2024 · Updated Oct 17, 2024

NULL pointer dereference in EmbedThis GoAhead 6.0.0 and earlier allows remote authenticated users to crash the server through a malicious JST file. When JavaScript support is compiled in, evalExpr() dereferences a null pointer while interpreting attacker-controlled JavaScript template content. Exploitation requires privileges to modify a server-side JST file and then have the server process it; the resulting impact is a service crash only.

CVSS severity5.3
Medium
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

NULL pointer dereference in EmbedThis GoAhead 6.0.0 and earlier allows remote authenticated users to crash the server through a malicious JST file. When JavaScript support is compiled in, evalExpr() dereferences a null pointer while interpreting attacker-controlled JavaScript template content. Exploitation requires privileges to modify a server-side JST file and then have the server process it; the resulting impact is a service crash only.

The record

CVE
CVE-2024-3186
Published
Oct 17, 2024
Updated
Oct 17, 2024
Vendor
EmbedThis
Product
GoAhead
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Oct 17, 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=0 <=6.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

EmbedThis · GoAheadversion=0 <=6.0.0

Published CVSS scores

5.3Nozomi Networks Inc.CVSS:3.1/AV:N/AC:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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