Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2008-0610 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Ultravnc

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer6 documents4 sources
Severity
9.3CRITICALNVD
EPSS
74.8%
top 1.13%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
1
Ultravnc
Timeline
PublishedFeb 6
Latest updateMay 17

Description

Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ClientConnection.cpp in vncviewer for UltraVNC 1.0.2 and 1.0.4 before 01252008, when in LISTENING mode or when using the DSM plugin, allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a modified size value.

CVSS vector

AV:N/AC:M/C:C/I:C/A:CExploitability: 8.6 | Impact: 10.0

Affected Packages1 packages

▶NVDultravnc/ultravnc5 versions+4

Patches

Patch: secunia.com ↗Patch: www.securityfocus.com ↗Patch: secunia.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-fggx-77cq-hgm9: Multiple stack-based buffer overflows in multiple functions in vncviewer/FileTransfer↗2022-05-17
▶
GHSA
GHSA-vm88-xwrf-p2q7: Stack-based buffer overflow in the ClientConnection::NegotiateProtocolVersion function in vncviewer/ClientConnection↗2022-05-01
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💥Exploits & PoCs

2
Exploit-DB
UltraVNC 1.0.2 Client - 'vncviewer.exe' Remote Buffer Overflow (Metasploit)↗2012-03-26
▶
Metasploit
UltraVNC 1.0.2 Client (vncviewer.exe) Buffer Overflow↗
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