CVE-2020-37133Disclosure(uvnc / ultravnc)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in the Repeater Host configuration field that allows attackers to crash the application. Attackers can paste an overly long string of 300 characters into the Repeater Host property to trigger an application crash.

0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-121CWE-787

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • ultravnc

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
ultravnc

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-02-05: 1Technical Details · 2026-02-05: 102-05
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • CVE@CVEnew
    Disclosure

    CVE-2020-37133 UltraVNC Launcher 1.2.4.0 contains a denial of service vulnerability in the Repeater Host configuration field that allows attackers to crash the application. Attacker… https://www.cve.org/CVERecord?id=CVE-2020-37133

    Post summary

    The post discloses a denial‑of‑service vulnerability in UltraVNC Launcher 1.2.4.0 that can crash the application via the Repeater Host configuration field.

    00001129
    56.5K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appuvncultravnc---

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