Buffer overflow in Xnview Nconvert
CVE-2023-43250
XNSoft Nconvert 7.136 is vulnerable to Buffer Overflow. There is a User Mode Write AV via a crafted image file. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (47.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Xnview Nconvert — versions 7.136
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/mrtouch93/exploits/tree/main/NConvert7.136/User Mode Write AV (Exploit, Third Party Advisory)
- www.xnview.com/en/nconvert/ (Product)
- packetstormsecurity.com/files/175145/XNSoft-Nconvert-7.136-Buffer-Overflow-Deni… (VDB Entry, Third Party Advisory)
- seclists.org/fulldisclosure/2023/Oct/15 (Exploit, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-43250?
- CVE-2023-43250 is a high-severity vulnerability in Xnview Nconvert, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2023-10-18.
- How severe is CVE-2023-43250?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-43250 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.