An issue was discovered in LibVNCServer before 0.9.13. libvncclient/tls_openssl.c has a NULL pointer dereference.
総合評価: CVE-2020-14396 は中リスク(60.1/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 2.57%、83 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.58% | 2.57% | +0.99% |
| 2 | 2025-12-28 | 1.07% | 1.58% | +0.51% |
| 3 | 2025-12-27 | — | 1.07% | — |
EPSS の全履歴 (全 17 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2020-14396: 1 source package rows (libvncserver); 8 state rows across 4 repos (3.10-main, 3.11-main, 3.22-community, edge-community); fixed 0, open 8. | https://security.alpinelinux.org/vuln/CVE-2020-14396 |
debian
|
not yet assigned | CVE-2020-14396 not yet assigned priority: Debian including 1 source packages (libvncserver), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-14396 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-14396 |
suse
|
medium | CVE-2020-14396 severity moderate: SUSE including 4 source package names (LibVNCServer, LibVNCServer-devel, libvncclient0, libvncserver0), 43 product×package rows across 20 product lines (SUSE Linux Enterprise High Performance Computing 12 SP4, SUSE Linux Enterprise High Performance Computing 12 SP5, … (20 product lines)): Known Not Affected 43. | https://www.suse.com/security/cve/CVE-2020-14396/ |
ubuntu
|
medium | CVE-2020-14396 medium priority: Ubuntu including 3 source packages (libvncserver, veyon, x11vnc), 51 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 23, ignored 16, needs-triage 7, DNE 4, released 1. | https://ubuntu.com/security/CVE-2020-14396 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| libvnc_project | libvncserver | <= 0.9.12 | cpe:2.3:a:libvnc_project:libvncserver:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.10 | cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 20.04 | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| siemens | simatic_itc1500_firmware | >= 3.0.0.0, < 3.2.1.0 | cpe:2.3:o:siemens:simatic_itc1500_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_itc1500_pro_firmware | >= 3.0.0.0, < 3.2.1.0 | cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_itc1900_firmware | >= 3.0.0.0, < 3.2.1.0 | cpe:2.3:o:siemens:simatic_itc1900_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_itc1900_pro_firmware | >= 3.0.0.0, < 3.2.1.0 | cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_itc2200_firmware | >= 3.0.0.0, < 3.2.1.0 | cpe:2.3:o:siemens:simatic_itc2200_firmware:*:*:*:*:*:*:*:* |
| siemens | simatic_itc2200_pro_firmware | >= 3.0.0.0, < 3.2.1.0 | cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf | Patch Third Party Advisory |
| https://github.com/LibVNC/libvncserver/commit/33441d90a506d5f3ae9388f2752901227e430553 | Patch Third Party Advisory |
| https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13 | Release Notes Third Party Advisory |
| https://usn.ubuntu.com/4434-1/ | Third Party Advisory |