CVE-2019-8277
7.5 · HIGHOverview
CVE-2019-8277 is a high-severity vulnerability affecting uvnc ultravnc. It was published on March 8, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
UltraVNC revision 1211 contains multiple memory leaks (CWE-665) in VNC server code, which allows an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. This attack appears to be exploitable via network connectivity. These vulnerabilities have been fixed in revision 1212.
Remediation
Check the references section for vendor advisories and patches from uvnc. Update ultravnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| uvnc | ultravnc | >= 0, < 1.2.2.3 | Affected |
| siemens | sinumerik_access_mymachine\/p2p | >= 0, < 4.8 | Affected |
| siemens | sinumerik_pcu_base_win10_software\/ipc | >= 0, < 14.00 | Affected |
| siemens | sinumerik_pcu_base_win7_software\/ipc | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2019-8277?
CVE-2019-8277 is a high-severity vulnerability affecting uvnc ultravnc. It was published on March 8, 2019 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2019-8277?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-8277?
Check the references section for vendor advisories and patches from uvnc. Update ultravnc to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-8277?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-8277 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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