CVE-2021-39131Public exploitNetwork attack vector

Process crash via unchecked non-Buffer input

Published Aug 17, 2021 · Updated Aug 4, 2024

Improper type handling in Sonicdoe ced before 1.0.0 allows attackers to crash a Node.js process by supplying non-Buffer input. The exported JavaScript wrapper forwards its argument directly to the native bindings.detectEncoding function without first checking Buffer.isBuffer. Reachability requires a consuming application to pass attacker-controlled non-Buffer values, and the bounded consequence is termination of the application's Node.js process.

CVSS severity7.5
High
EPSS probability1.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper type handling in Sonicdoe ced before 1.0.0 allows attackers to crash a Node.js process by supplying non-Buffer input. The exported JavaScript wrapper forwards its argument directly to the native bindings.detectEncoding function without first checking Buffer.isBuffer. Reachability requires a consuming application to pass attacker-controlled non-Buffer values, and the bounded consequence is termination of the application's Node.js process.

The record

CVE
CVE-2021-39131
Published
Aug 17, 2021
Updated
Aug 4, 2024
Vendor
Sonicdoe
Product
ced
Classifications
CWE-755, CWE-241, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=< 1.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Sonicdoe · cedversion=< 1.0.0

Published CVSS scores

7.2GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/RL:O/RC:C
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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.

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-755Improper Handling of Exceptional Conditions
CWE-241Improper Handling of Unexpected Data Type
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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