Is there a public PoC exploit available for EUVD-2018-21846?

Yes, a public proof-of-concept exploit is available for EUVD-2018-21846. Prioritise patching immediately. EPSS: 0.0%.

Allok Avi Divx Mpeg To Dvd Converter EUVD-2018-21846

Q: What is the CVSS score of EUVD-2018-21846?

EUVD-2018-21846 has a CVSS 4.0 base score of 8.6 (High). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

| CVE-2018-25323 HIGH

Classic Buffer Overflow (CWE-120)

2026-05-17 VulnCheck

GHSA-mgqh-f588-pvcg

Buffer Overflow RCE Allok Avi Divx Mpeg To Dvd Converter

8.6

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

8.6 HIGH

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

CVSS changed

May 17, 2026 - 13:22 NVD

8.4 (HIGH) 8.6 (HIGH)

CVE Published

May 17, 2026 - 12:11 cve.org

HIGH 8.6

DescriptionCVE.org

Allok AVI DivX MPEG to DVD Converter 2.6.1217 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious payload. Attackers can craft a text file with a specially crafted buffer containing shellcode and SEH chain overwrite values, then paste the contents into the License Name field to trigger code execution.

AnalysisAI

Allok AVI DivX MPEG to DVD Converter 2.6.1217 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Allok AVI DivX MPEG to DVD Converter 2.6.1217 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious payload. Attackers can craft a text file with a specially crafted buffer containing shellcode and SEH chain overwrite values, then paste the contents into the License Name field to trigger code execution. Affected products include: Alloksoft Allok Avi Divx Mpeg To Dvd Converter.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.