9.3

CVE-2008-0610: ultravnc

CVSS: 9.3v2.0HighModified
Published 06-02-2008Last modified 07-08-2024

Vulnerability summary

CVE-2008-0610 is a high (CVSS 9.3) vulnerability in ultravnc. EPSS estimates a 38.76% chance of exploitation in the next 30 days, higher than 98.5% of scored vulnerabilities. 3 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
38.76%
0%100%
High · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits3reference, exploit-database, metasploit

Timeline

  1. 06-02-2008
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

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 metrics

1 score · 1 source · 1 version

EPSS trend

Probability

38.76%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

0.00 pp

From 38.76% on 19-09-2026

19-09-202619-10-2026
EPSS score
38.76%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

3 found
  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

  • exploit-databaseremotewindowsVerified

    UltraVNC 1.0.2 Client - 'vncviewer.exe' Remote Buffer Overflow (Metasploit)

    Maturity: weaponized

  • MetasploitMetasploitremoteUnverified

    UltraVNC 1.0.2 Client (vncviewer.exe) Buffer Overflow

    exploit/windows/vnc/ultravnc_viewer_bof

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Ultravnc1 product
  • ultravnc1.0.2 | 1.0.4 | 1.0.4_rc6 | 1.0.4_rc7 | 1.0.4_rc8

1 vendor · 1 product

References

9 links