Which products and versions are affected by CVE-2008-0610?

Affected: Ultravnc versions 1.0.2, 1.0.4, 1.0.4_rc6, 1.0.4_rc7, 1.0.4_rc8. The full list is in the CVE brief.

Is CVE-2008-0610 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2008-0610 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2008-0610?

Public exploit code is available.

Is there a fix for CVE-2008-0610?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2008-0610 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

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Emerging threatsCritical

CVE-2008-0610Ultravnc Memory Corruption

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…

Published Feb 6, 2008 · Updated Apr 22, 2026

Key Facts

Patch immediately

CVE-2008-0610 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Ultravnc.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 39% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Scores

CVSS v2

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

39%

Higher than 98.5% of all scored CVEs

Exploit maturity

Weaponized

ATLAS score

54/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Not listed

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Weaponized

Public exploit code

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

patch28747
patch27561

Description

Affected Products

5 affected entries in total

Product	Affected versions	Fixed in
UltravncUltravnc	1.0.2, 1.0.4, 1.0.4_rc6, 1.0.4_rc7, 1.0.4_rc8	n/a

Timeline

Publicly disclosed
Feb 6, 2008
Last updated
Apr 22, 2026

Weakness Type

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

patch28747
patch27561
exploitMSF ultravnc_viewer_bof.rb
exploitExploitDB-18666
otherforum.ultravnc.info · viewtopic.php

5 more references in the full CVE brief

FAQ

Common Questions.

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)…
Affected: Ultravnc versions 1.0.2, 1.0.4, 1.0.4_rc6, 1.0.4_rc7, 1.0.4_rc8. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Is CVE-2008-0610 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.