iForwarder and upRedSun Port Forwarding Wizard 4.8.0 Register Feature buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in iForwarder and upRedSun Port Forwarding Wizard 4.8.0. This affects an unknown part of the component Register Feature. Executing a manipulation can lead to buffer overflow. This vulnerability is handled as CVE-2020-37025. It is possible to launch the attack on the local host. Additionally, an exploit exists.

Detailsinfo

A vulnerability classified as critical was found in iForwarder and upRedSun Port Forwarding Wizard 4.8.0. This vulnerability affects some unknown functionality of the component Register Feature. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was released by Sarang Tumne as 48695. The advisory is shared for download at exploit-db.com. This vulnerability was named CVE-2020-37025 since 01/28/2026. The exploitation appears to be easy. The attack needs to be approached locally. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (48695) and EUVD (EUVD-2020-30951). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

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Version

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.4
CNA Vector (VulnCheck): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/28/2026 CVE reserved
01/31/2026 +3 days Advisory disclosed
01/31/2026 +0 days VulDB entry created
01/31/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: 48695
Researcher: Sarang Tumne
Status: Not defined

CVE: CVE-2020-37025 (🔒)
GCVE (CVE): GCVE-0-2020-37025
GCVE (VulDB): GCVE-100-343576
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 01/31/2026 03:31
Updated: 01/31/2026 14:02
Changes: 01/31/2026 03:31 (80), 01/31/2026 14:02 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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