CVE-2019-8268 - UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution

Back Back to CVE browser

CRITICAL

UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution

Published Mar 9, 2019

9.8

CRITICAL

CVSS 3.1

EPSS 3.92%

Description

UltraVNC revision 1206 has multiple off-by-one vulnerabilities in VNC client code connected with improper usage of ClientConnection::ReadString function, which can potentially result code execution. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1207.

Affected products

Vendor Kaspersky Lab Product UltraVNC Default
n/a
- Version
  1.2.2.3
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Kaspersky Lab

UltraVNC

n/a

Version	Status	Constraints
1.2.2.3	affected	-

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-193

References (3)

https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf
x_refsource_CONFIRMThird Party Advisory
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-015-ultravnc-off-by-one-error/
x_refsource_MISCThird Party Advisory
https://www.us-cert.gov/ics/advisories/icsa-20-161-06
x_refsource_MISCThird Party AdvisoryUS Government Resource

Link	Providers	Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf		x_refsource_CONFIRMThird Party Advisory
https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-015-ultravnc-off-by-one-error/		x_refsource_MISCThird Party Advisory
https://www.us-cert.gov/ics/advisories/icsa-20-161-06		x_refsource_MISCThird Party AdvisoryUS Government Resource

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner Kaspersky

Published Mar 9, 2019

Updated Sep 17, 2024

Reserved Feb 12, 2019

Link CVE-2019-8268

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2019-8268

Red Hat

Severity n/a

Public date n/a

Links CVE-2019-8268