CVE-2023-43251

Name: CVE-2023-43251
Creator: NVD / NIST
Published: 2023-10-19T15:15:09.583+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.54%

Last modified Jun 17, 2026

CVE-2023-43251 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. XNSoft Nconvert 7.136 has an Exception Handler Chain Corrupted via a crafted image file. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.. EPSS estimates a 0.54% chance of exploitation in the next 30 days.

Description

XNSoft Nconvert 7.136 has an Exception Handler Chain Corrupted via a crafted image file. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

0.54%

41.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-755

Affected Software

Vendor	Product	Versions
Xnview	Nconvert	7.136

References

http://packetstormsecurity.com/files/175145/XNSoft-Nconvert-7.136-Buffer-Overflow-Denial-Of-Service.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2023/Oct/15Exploit, Mailing List, Third Party Advisory
https://github.com/mrtouch93/exploits/tree/main/NConvert7.136/SEHExploit, Third Party Advisory
https://www.xnview.com/en/nconvert/Product
http://packetstormsecurity.com/files/175145/XNSoft-Nconvert-7.136-Buffer-Overflow-Denial-Of-Service.htmlThird Party Advisory, VDB Entry
http://seclists.org/fulldisclosure/2023/Oct/15Exploit, Mailing List, Third Party Advisory
https://github.com/mrtouch93/exploits/tree/main/NConvert7.136/SEHExploit, Third Party Advisory
https://www.xnview.com/en/nconvert/Product

Timeline

Published: Oct 19, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-43251?

XNSoft Nconvert 7.136 has an Exception Handler Chain Corrupted via a crafted image file. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.

How severe is CVE-2023-43251?

CVE-2023-43251 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.54% probability of exploitation in the next 30 days.

How do I fix CVE-2023-43251?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-43251?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST