Denial of Service Vulnerability in VirtualTablet Server by Sunny Side Software
CVE-2020-37085

8.7HIGH

Key Information:

Vendor

Sunnysidesoft

Status
Virtualtablet Server
Vendor
CVE Published:
3 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-37085?

VirtualTablet Server version 3.0.2 is susceptible to a denial of service vulnerability, which can be exploited by attackers sending oversized string payloads via the Thrift protocol. By invoking the send_say() method with a lengthy string, attackers may render the server unresponsive, disrupting service and affecting users reliant on its functionality.

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Affected Version(s)

VirtualTablet Server 3.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-37085 - Proof of Concept

References

https://www.exploit-db.com/exploits/48402
exploit
http://www.sunnysidesoft.com/
product
https://www.vulncheck.com/advisories/virtualtablet-server...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dolev Farhi
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