CVE-2023-6381

Application crash via malformed SMB configuration file

Published Dec 13, 2023 · Updated Aug 2, 2024

Improper input validation in SuperMailer 11.20.0.2204 allows attackers to crash the application via a malicious SMB configuration file. The SMB configuration-file loader accepts attacker-controlled file content without adequate validation and crashes while processing the malformed data. Exploitation requires a local user to open a file delivered through a link or email attachment; the reported consequence is limited to an application crash.

CVSS severity3.3
Low
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in SuperMailer 11.20.0.2204 allows attackers to crash the application via a malicious SMB configuration file. The SMB configuration-file loader accepts attacker-controlled file content without adequate validation and crashes while processing the malformed data. Exploitation requires a local user to open a file delivered through a link or email attachment; the reported consequence is limited to an application crash.

The record

CVE
CVE-2023-6381
Published
Dec 13, 2023
Updated
Aug 2, 2024
Vendor
Mirko Böer Softwareentwicklungen
Product
SuperMailer
Classifications
CWE-20, CAPEC-153, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 13, 2023CVE 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?

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  1. Affected versionversion=11.20.0.2204

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Mirko Böer Softwareentwicklungen · SuperMailerversion=11.20.0.2204

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.3INCIBECVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CAPEC-153Input Data Manipulation
T1204.002User Execution: Malicious File

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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