PT-2026-6577 · Realvnc · Ultravnc Launcher

Chuyreds · Publicado 2026-02-05 · Atualizado 2026-02-05 · CVE-2020-37133

Positive Technologies (AI Summary)

CVSS v3.1

7.5

Alta

Vetor base

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions UltraVNC Launcher version 1.2.4.0

Description The software contains a denial of service issue in the Repeater Host configuration field. An attacker can cause the application to crash by providing an overly long string, specifically 300 characters, to the Repeater Host property. The vulnerable configuration field is the RepeaterHost property.

Recommendations Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, avoid using or limit the length of input in the RepeaterHost property.

Exploit

Correção

DoS

Stack Overflow

Memory Corruption

Enumeração de Fraquezas

CWE-121

CWE-787

Identificadores relacionados

CVE-2020-37133

Produtos afetados

Ultravnc Launcher

Referências · 6

• 🔥 https://exploit-db.com/exploits/48288 · Exploit
• https://t.me/CVEtracker/43825 · Publicação no Telegram
• https://uvnc.com · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2020-37133 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2020-37133 · Aviso do Fabricante
• https://vulncheck.com/advisories/ultravnc-launcher-repeaterhost-denial-of-service · Nota