汇总 libvnc_project 相关全部产品的 CVE 与安全漏洞情报，包括 CVSS、EPSS、公开时间与漏洞情报数据。
已披露问题常与 内存损坏与缓冲区溢出 相关，可能在 生产负载与软件部署 场景中带来 内存损坏与应用崩溃 等暴露风险。
相关漏洞数据主要来源于公开漏洞披露与安全公告，可用于评估历史漏洞暴露面与修复优先级。
| CVE | 摘要 | 来源 | 最高 CVSS | EPSS % | 公开时间 | 更新时间 |
|---|---|---|---|---|---|---|
| CVE-2020-14405 | An issue was discovered in LibVNCServer before 0.9.13. libvncclient/rfbproto.c does not limit TextChat size. | [email protected] | 6.5 | 1.85% | 2020-06-17 | 2026-06-16 |
| CVE-2020-14404 | An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rre.c allows out-of-bounds access via encodings. | [email protected] | 5.4 | 1.63% | 2020-06-17 | 2026-06-16 |
| CVE-2020-14403 | An issue was discovered in LibVNCServer before 0.9.13. libvncserver/hextile.c allows out-of-bounds access via encodings. | [email protected] | 5.4 | 1.61% | 2020-06-17 | 2026-06-16 |
| CVE-2020-14402 | An issue was discovered in LibVNCServer before 0.9.13. libvncserver/corre.c allows out-of-bounds access via encodings. | [email protected] | 5.4 | 1.94% | 2020-06-17 | 2026-06-16 |
| CVE-2020-14398 | An issue was discovered in LibVNCServer before 0.9.13. An improperly closed TCP connection causes an infinite loop in libvncclient/sockets.c. | [email protected] | 7.5 | 2.76% | 2020-06-17 | 2026-06-16 |
| CVE-2020-14397 | An issue was discovered in LibVNCServer before 0.9.13. libvncserver/rfbregion.c has a NULL pointer dereference. | [email protected] | 7.5 | 3.39% | 2020-06-17 | 2026-06-16 |
| CVE-2020-14396 | An issue was discovered in LibVNCServer before 0.9.13. libvncclient/tls_openssl.c has a NULL pointer dereference. | [email protected] | 7.5 | 2.57% | 2020-06-17 | 2026-06-16 |
| CVE-2019-20840 | An issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode. | [email protected] | 7.5 | 2.59% | 2020-06-17 | 2026-06-16 |
| CVE-2019-20839 | libvncclient/sockets.c in LibVNCServer before 0.9.13 has a buffer overflow via a long socket filename. | [email protected] | 7.5 | 3.59% | 2020-06-17 | 2026-06-16 |
| CVE-2018-21247 | An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function. | [email protected] | 7.5 | 2.36% | 2020-06-17 | 2026-06-16 |
| CVE-2019-20788 | libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690. | [email protected] | 9.8 | 2.44% | 2020-04-23 | 2026-06-16 |
| CVE-2019-15681 | LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak (CWE-655) in VNC server code, which allow 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 appear to be exploitable via network connectivity. These vulnerabilities have been fixed in commit d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a. | [email protected] | 7.5 | 3.35% | 2019-10-29 | 2026-06-16 |
| CVE-2018-20750 | LibVNC through 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete. | [email protected] | 9.8 | 3.33% | 2019-01-30 | 2026-06-16 |
| CVE-2018-20749 | LibVNC before 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete. | [email protected] | 9.8 | 3.23% | 2019-01-30 | 2026-06-16 |
| CVE-2018-20748 | LibVNC before 0.9.12 contains multiple heap out-of-bounds write vulnerabilities in libvncclient/rfbproto.c. The fix for CVE-2018-20019 was incomplete. | [email protected] | 9.8 | 3.23% | 2019-01-30 | 2026-06-16 |
| CVE-2018-6307 | LibVNC before commit ca2a5ac02fbbadd0a21fabba779c1ea69173d10b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution. | [email protected] | 8.1 | 26.54% | 2018-12-19 | 2026-06-16 |
| CVE-2018-20024 | LibVNC before commit 4a21bbd097ef7c44bb000c3bd0907f96a10e4ce7 contains null pointer dereference in VNC client code that can result DoS. | [email protected] | 7.5 | 3.26% | 2018-12-19 | 2026-06-16 |
| CVE-2018-20023 | LibVNC before 8b06f835e259652b0ff026898014fc7297ade858 contains CWE-665: Improper Initialization vulnerability in VNC Repeater client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR | [email protected] | 7.5 | 2.50% | 2018-12-19 | 2026-06-16 |
| CVE-2018-20022 | LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR | [email protected] | 7.5 | 2.94% | 2018-12-19 | 2026-06-16 |
| CVE-2018-20021 | LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM | [email protected] | 7.5 | 3.52% | 2018-12-19 | 2026-06-16 |