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Vulnerability record · CVE-2020-37025 · published 30 January 2026

CVE-2020-37025: Classic buffer overflow vulnerability

Port Forwarding Wizard 4.8.0 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code through a long request in the Register feature. Attackers can craft a malicious payload with an egg tag and overwrite SEH handlers to potentially execute shellcode on vulnerable Windows systems.

8.4 CVSS 4.0 High EPSS 0.18% · top 93.0% CWE-120 · Classic buffer overflow Deferred
8.4CVSS 4.0 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

Port Forwarding Wizard 4.8.0 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code through a long request in the Register feature. Attackers can craft a malicious payload with an egg tag and overwrite SEH handlers to potentially execute shellcode on vulnerable Windows systems.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/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:

References

LinkTags
http://www.port-forwarding.net/
https://www.exploit-db.com/exploits/48695
https://www.vulncheck.com/advisories/port-forwarding-wizard-buffer-overflow

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Source: NIST National Vulnerability Database (record CVE-2020-37025), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.