CVE-2024-22532Public exploitNetwork attack vector

Process crash via XWD conversion heap overwrite

Published Feb 28, 2024 · Updated Aug 1, 2024

Heap-based buffer overflow in XnSoft NConvert 7.163 for Windows x86 allows attackers to crash the process with a crafted XWD file. The XWD conversion path copies attacker-controlled data past a heap buffer, and the proof of concept reaches a write access violation at nconvert+0x1a8eea. A user must cause the utility to convert the crafted file; the demonstrated consequence is process termination, not code execution.

CVSS severity6.5
Medium
EPSS probability1.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in XnSoft NConvert 7.163 for Windows x86 allows attackers to crash the process with a crafted XWD file. The XWD conversion path copies attacker-controlled data past a heap buffer, and the proof of concept reaches a write access violation at nconvert+0x1a8eea. A user must cause the utility to convert the crafted file; the demonstrated consequence is process termination, not code execution.

The record

CVE
CVE-2024-22532
Published
Feb 28, 2024
Updated
Aug 1, 2024
Vendor
XnSoft
Product
NConvert
Classifications
CWE-122, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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=7.163

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

XnSoft · NConvertversion=7.163

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/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.

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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 exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1204.002User Execution: Malicious File

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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