CVE-2019-8277
Quick assessment
Affected
Kaspersky Lab UltraVNC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
UltraVNC是一款用于Windows平台的开源远程终端控制软件。 UltraVNC 1211版本中的VNC服务器代码存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
Possible ATT&CK Techniques 2 AI
T1011 · Exfiltration Over Other Network Medium T1041 · Exfiltration Over C2 Channel
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I. Basic Information for CVE-2019-8277
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
初始化不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
UltraVNC 资源管理错误漏洞
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 1211版本中的VNC服务器代码存在资源管理错误漏洞。该漏洞源于网络系统或产品对系统资源（如内存、磁盘空间、文件等）的管理不当。
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 | revision 1211 | - |
|
II. Public POCs for CVE-2019-8277
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2019-8277 (5)
-
https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf x_refsource_CONFIRM
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https://www.us-cert.gov/ics/advisories/icsa-20-161-06 x_refsource_MISC
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https://cert-portal.siemens.com/productcert/pdf/ssa-286838.pdf x_refsource_CONFIRM
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https://cert-portal.siemens.com/productcert/pdf/ssa-940818.pdf x_refsource_CONFIRM
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https://us-cert.cisa.gov/ics/advisories/icsa-21-131-11 x_refsource_MISC
Other References for CVE-2019-8277 (1)
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-2019-8266 | 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-2019-8280 | UltraVNC 缓冲区错误漏洞 |
IV. Related Vulnerabilities
Same product: UltraVNC
-
CVE-2026-7840
UltraVNC repeater HTTP server global buffer overflow via lon -
CVE-2026-7839
UltraVNC repeater ships hardcoded default admin password all -
CVE-2026-7838
UltraVNC viewer heap buffer overflow via integer overflow in -
CVE-2026-7831
UltraVNC viewer off-by-one stack overflow in ServerInit desk -
CVE-2026-7830
UltraVNC MS-Logon II uses 64-bit Diffie-Hellman and seeded l
Same weakness: CWE-665
V. Comments for CVE-2019-8277
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