CVE-2023-43252Public exploit

Application crash via crafted image stack overrun

Published Oct 19, 2023 · Updated Sep 12, 2024

Stack buffer overflow in XnSoft NConvert before 7.155 allows context-dependent attackers to crash the application via a crafted image. During image parsing, crafted file data overruns a stack buffer and corrupts adjacent memory; no function or image format is disclosed. Exploitation requires a victim to process the file locally; denial of service is demonstrated, while code execution remains unverified.

CVSS severity7.8
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack buffer overflow in XnSoft NConvert before 7.155 allows context-dependent attackers to crash the application via a crafted image. During image parsing, crafted file data overruns a stack buffer and corrupts adjacent memory; no function or image format is disclosed. Exploitation requires a victim to process the file locally; denial of service is demonstrated, while code execution remains unverified.

The record

CVE
CVE-2023-43252
Published
Oct 19, 2023
Updated
Sep 12, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 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 vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
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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