An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.
総合評価: CVE-2018-7225 は悪用リスクが高い(83.7/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 3.26%、87 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-04-13 | 4.26% | 3.26% | -1.01% |
| 2 | 2025-12-20 | 4.08% | 4.26% | +0.18% |
| 3 | 2025-12-18 | — | 4.08% | — |
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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.0 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
critical | CVE-2018-7225: 1 source package rows (libvncserver); 11 state rows across 9 repos (3.10-main, 3.11-main, 3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 9, open 2. | https://security.alpinelinux.org/vuln/CVE-2018-7225 |
debian
|
not yet assigned | CVE-2018-7225 not yet assigned priority: Debian including 3 source packages (libvncserver, tightvnc, vino), 12 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 12. | https://security-tracker.debian.org/tracker/CVE-2018-7225 |
gentoo
|
normal | CVE-2018-7225: 1 GLSA(s) (201908-05), 1 atom(s) (net-libs/libvncserver); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-7225 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-7225 |
suse
|
high | CVE-2018-7225 severity important: SUSE including 32 source package names (LibVNCServer, LibVNCServer-0.9.1-160.3.1, …), 63 product×package rows across 35 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Desktop 12 SP3, … (35 product lines)): Fixed 47, Known Not Affected 16. | https://www.suse.com/security/cve/CVE-2018-7225/ |
ubuntu
|
medium | CVE-2018-7225 medium priority: Ubuntu including 4 source packages (italc, libvncserver, tightvnc, vino), 65 status rows across 17 suites (artful, bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 35, DNE 14, ignored 8, needs-triage 8. | https://ubuntu.com/security/CVE-2018-7225 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| libvncserver_project | libvncserver | <= 0.9.11 | cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| 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:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 17.10 | cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.5 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.openwall.com/lists/oss-security/2018/02/18/1 | Exploit Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/103107 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2018:1055 | Third Party Advisory |
| https://github.com/LibVNC/libvncserver/issues/218 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2018/03/msg00035.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html | |
| https://lists.debian.org/debian-lts-announce/2019/11/msg00032.html | |
| https://lists.debian.org/debian-lts-announce/2019/12/msg00028.html | |
| https://security.gentoo.org/glsa/201908-05 | |
| https://usn.ubuntu.com/3618-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4547-1/ | |
| https://usn.ubuntu.com/4573-1/ | |
| https://usn.ubuntu.com/4587-1/ | |
| https://www.debian.org/security/2018/dsa-4221 | Third Party Advisory |