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TI-2020-19263 Aliases CVE-2020-37128GHSA-3f26-hjxq-9434

ZOC Terminal 7.25.5 - 'Script' Denial of Service

Priority MEDIUM 63CWE-121Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00186 8th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
EmTecZOC Terminal7.25.5—No fix listedCNA
  • ZOC Terminal VendorEmTec Affected 7.25.5 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-37128
  2. 2026-10-03 Alias added: GHSA-3f26-hjxq-9434

References

Exploit 1

Other 1

  • TI-2020-19271 ZOC Terminal v7.25.5 - 'Private key file' Denial of Service CVSS 4.0MEDIUM 6.7
  • TI-2019-15642 ZOC Terminal 7.23.4 Buffer Overflow Denial of Service CVSS 4.0MEDIUM 6.9
  • TI-2021-17331 EmTec ZOC before 8.02.2 allows \e[201~ pastes, a different vulnerability than CVE-2021-32198. CVSS 3.1CRITICAL 9.8
  • TI-2021-12076 EmTec ZOC through 8.02.4 allows remote servers to cause a denial of service (Windows GUI… CVSS 3.1CRITICAL 9.8
  • TI-2017-11036 EmTec PyroBatchFTP before 3.18 allows remote servers to cause a denial of service (application crash). CVSS 3.0HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences