SARA / Free Tools / CVE / CVE-2019-8263

CVE-2019-8263 — UltraVNC revision 1205 has stack-based buffer overflow vulnerability in VNC clie

UltraVNC revision 1205 has stack-based buffer overflow vulnerability in VNC client code inside ShowConnInfo routine, which leads to a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. User interaction is required to trigger this vul

CVSS
— —
EPSS
0.83% (top 25.60%)
CWE
CWE-121
Published
2019-03-05T15:00:00.000Z
Last modified
2024-09-16T23:56:07.697Z
CVSS vector
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01What is this vulnerability?

UltraVNC revision 1205 has stack-based buffer overflow vulnerability in VNC client code inside ShowConnInfo routine, which leads to a denial of service (DoS) condition. This attack appear to be exploitable via network connectivity. User interaction is required to trigger this vulnerability. This vulnerability has been fixed in revision 1206.

02Affected products

VendorProductVersions
Kaspersky LabUltraVNC1.2.2.3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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