How severe is CVE-2020-37132?

CVE-2020-37132 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 high, integrity none, and availability none.

Is CVE-2020-37132 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-37132?

CVE-2020-37132 affects Uvnc Ultravnc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-37132?

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

Does CVE-2020-37132 have an EU (EUVD) identifier?

Yes. CVE-2020-37132 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31032.

When was CVE-2020-37132 published?

CVE-2020-37132 was published on 2026-02-05 and last updated on 2026-06-17.

CVE-2020-37132

CVE-2020-37132 is a medium-severity vulnerability in Uvnc Ultravnc 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.2)
CVSS v4: 6.7
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-31032
Weakness: CWE-787
Affected product: Uvnc Ultravnc
Published: 2026-02-05
Last modified: 2026-06-17

Description

UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in its password configuration properties that allows local attackers to crash the application. Attackers can paste an overly long 300-character string into the password field to trigger an application crash and prevent normal launcher functionality.

Frequently asked questions

What is CVE-2020-37132?: UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in its password configuration properties that allows local attackers to crash the application. Attackers can paste an overly long 300-character string into the password field to trigger an application crash and prevent normal launcher functionality.
How severe is CVE-2020-37132?: CVE-2020-37132 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 high, integrity none, and availability none.
Is CVE-2020-37132 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-37132?: CVE-2020-37132 affects Uvnc Ultravnc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-37132?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2020-37132 have an EU (EUVD) identifier?: Yes. CVE-2020-37132 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-31032.
When was CVE-2020-37132 published?: CVE-2020-37132 was published on 2026-02-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:uvnc:ultravnc:*:*:*:*:*:*:*:*

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