CVE-2026-3382Public exploit

Process crash via invalid asynchronous boxed value

Published Mar 1, 2026 · Updated Mar 1, 2026

Memory corruption in ChaiScript 6.0 and 6.1.0 allows local users to crash a host application through crafted asynchronous script execution. A finished async task can return a Boxed_Value with invalid cross-thread state; interpolating that result invokes Boxed_Number::to_string and get_as, which reads an invalid address. The user must be able to run ChaiScript code in an embedding application, and the demonstrated consequence is a process crash rather than data disclosure or code execution.

CVSS severity5.5
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in ChaiScript 6.0 and 6.1.0 allows local users to crash a host application through crafted asynchronous script execution. A finished async task can return a Boxed_Value with invalid cross-thread state; interpolating that result invokes Boxed_Number::to_string and get_as, which reads an invalid address. The user must be able to run ChaiScript code in an embedding application, and the demonstrated consequence is a process crash rather than data disclosure or code execution.

The record

CVE
CVE-2026-3382
Published
Mar 1, 2026
Updated
Mar 1, 2026
Vendor
ChaiScript
Product
ChaiScript
Classifications
CWE-119, CWE-787, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 1, 2026Record 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=6.0
  2. Affected versionversion=6.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ChaiScript · ChaiScriptversion=6.0; version=6.1.0

Published CVSS scores

1.7VulDBAV:L/AC:L/Au:S/C:N/I:N/A:P
3.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787Out-of-bounds Write
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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