CVE-2023-30408Public exploit

Interpreter crash via crafted JavaScript execution

Published Apr 24, 2023 · Updated Feb 5, 2025

Denial of service in JerryScript commit 1a2c047 allows local users to crash the jerry interpreter by executing a crafted JavaScript file. The public issue demonstrates that a Promise and async-function test case makes build/bin/jerry terminate with a segmentation fault, but it does not identify the faulty code path or memory operation. Execution of attacker-controlled JavaScript is required, and the documented consequence is an interpreter crash without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in JerryScript commit 1a2c047 allows local users to crash the jerry interpreter by executing a crafted JavaScript file. The public issue demonstrates that a Promise and async-function test case makes build/bin/jerry terminate with a segmentation fault, but it does not identify the faulty code path or memory operation. Execution of attacker-controlled JavaScript is required, and the documented consequence is an interpreter crash without reported data disclosure or modification.

The record

CVE
CVE-2023-30408
Published
Apr 24, 2023
Updated
Feb 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-770, CWE-400, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CWE-400Uncontrolled Resource Consumption
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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