How severe is CVE-2020-37128?

CVE-2020-37128 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-37128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-37128?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2020-37128 have an EU (EUVD) identifier?

Yes. CVE-2020-37128 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31024.

When was CVE-2020-37128 published?

CVE-2020-37128 was published on 2026-02-05 and last updated on 2026-06-17.

CVE-2020-37128

CVE-2020-37128 is a medium-severity vulnerability with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-121.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
CVSS v4: 6.7
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-31024
Weakness: CWE-121
Published: 2026-02-05
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-37128?: 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.
How severe is CVE-2020-37128?: CVE-2020-37128 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-37128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-37128?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2020-37128 have an EU (EUVD) identifier?: Yes. CVE-2020-37128 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31024.
When was CVE-2020-37128 published?: CVE-2020-37128 was published on 2026-02-05 and last updated on 2026-06-17.

References

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