CVE-2019-8266
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I. Basic Information for CVE-2019-8266
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
UltraVNC revision 1207 has multiple out-of-bounds access vulnerabilities connected with improper usage of ClientConnection::Copybuffer function in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. User interaction is required to trigger these vulnerabilities. These vulnerabilities have been fixed in revision 1208.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在缓冲区结束位置之后访问内存
Source: NVD (National Vulnerability Database)
Vulnerability Title
UltraVNC 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UltraVNC是一款用于Windows平台的开源远程终端控制软件。 UltraVNC 1207版本中的VNC客户端代码存在安全漏洞，该漏洞源于程序错误地使用了‘ClientConnection::Copybuffer’函数。攻击者可利用该漏洞执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Kaspersky Lab | UltraVNC | 1.2.2.3 | - |
II. Public POCs for CVE-2019-8266
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.us-cert.gov/ics/advisories/icsa-20-161-06x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2019-8266
Same Patch Batch · Kaspersky Lab · 2019-03-09 · 15 CVEs total
| CVE-2019-8264 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8265 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8267 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8268 | UltraVNC 安全漏洞 | |
| CVE-2019-8269 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8270 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8271 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8272 | UltraVNC 安全漏洞 | |
| CVE-2019-8273 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8274 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8275 | UltraVNC 安全漏洞 | |
| CVE-2019-8276 | UltraVNC 缓冲区错误漏洞 | |
| CVE-2019-8277 | UltraVNC 资源管理错误漏洞 | |
| CVE-2019-8280 | UltraVNC 缓冲区错误漏洞 |
IV. Related Vulnerabilities
Same weakness: CWE-788
- CVE-2023-20585
Microsoft Input-Output Memory Management Unit 安全漏洞 - CVE-2026-20052
Cisco Secure Firewall Threat Defense Software Snort 3 Memory - CVE-2026-21316
Audition | Access of Memory Location After End of Buffer (CW - CVE-2025-36581
Dell PowerEdge Platform 14G AMD BIOS 安全漏洞 - CVE-2025-43580
Audition | Access of Memory Location After End of Buffer (CW
V. Comments for CVE-2019-8266
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