CVE-2024-39334Network attack vector

File write via crafted transaction XML

Published Jun 23, 2024 · Updated Nov 13, 2024

File write in the MENDELSON AS4 client before 2024 B376 allows remote attackers to write files through crafted transaction XML. The vendor has not disclosed the parsing locus or the XML field that controls the write; opening transaction details triggers file creation by the client process. A victim must open the received transaction's details, and the resulting writes are limited to the client process's filesystem access; the server process is unaffected.

CVSS severity6.5
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

File write in the MENDELSON AS4 client before 2024 B376 allows remote attackers to write files through crafted transaction XML. The vendor has not disclosed the parsing locus or the XML field that controls the write; opening transaction details triggers file creation by the client process. A victim must open the received transaction's details, and the resulting writes are limited to the client process's filesystem access; the server process is unaffected.

The record

CVE
CVE-2024-39334
Published
Jun 23, 2024
Updated
Nov 13, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 23, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 13, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1204User Execution

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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