EmTec ZOC Terminal 7.25.5 REXX Script File stack-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in EmTec ZOC Terminal 7.25.5. It has been declared as critical. Affected by this issue is some unknown functionality of the component REXX Script File Handler. The manipulation results in stack-based overflow. This vulnerability is reported as CVE-2020-37128. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as critical, was found in EmTec ZOC Terminal 7.25.5. Affected is some unknown processing of the component REXX Script File Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

ZOC Terminal 7.25.5 contains a script processing vulnerability that allows local attackers to crash the application by loading a maliciously crafted REXX script file. Attackers can generate an oversized script with 20,000 repeated characters to trigger an application crash and cause a denial of service.

The weakness was disclosed by chuyreds as 48302. The advisory is shared for download at exploit-db.com. This vulnerability is traded as CVE-2020-37128 since 02/03/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

The exploit is shared for download 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 vulnerability database at EUVD (EUVD-2020-31024). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

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: 6.3
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.2
CNA Vector (VulnCheck): 🔒

CVSSv2info

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

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

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

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/03/2026 CVE reserved
02/05/2026 +2 days Advisory disclosed
02/05/2026 +0 days VulDB entry created
02/06/2026 +1 days VulDB entry last update

Sourcesinfo

Advisory: 48302
Researcher: chuyreds
Status: Not defined

CVE: CVE-2020-37128 (🔒)
GCVE (CVE): GCVE-0-2020-37128
GCVE (VulDB): GCVE-100-344532
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/05/2026 18:01
Updated: 02/06/2026 09:39
Changes: 02/05/2026 18:01 (79), 02/06/2026 09:39 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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