GHSA-8wjc-q3qj-wc8j · 深刻度： critical — GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras...
GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other security devices. It is a native application accessed locally, but it is also possible to enable remote access via the "WebCam Server" feature. Once enabled, it is possible to access to the management and monitoring feature via a regular Web interface. This webersever is another native application, compiled without ASLR, which makes exploitation much easier and more likely. Most of the features require authentication before being reachable and leverage a standard login page to grant access. However the `gvapi` endpoint uses its own authentication mechanism via an `HTTP Authorization` header. It supports both `Basic` authentication and the `Digest` modes of authentication. #### Stack-overflow via unbound copy of base64 decoded string The `b64decoder` string is sized dynamically, but it is then copied to the `Buffer` stack variable one character at the time at [0], and there's no bound-check. As such, if the decoded string is bigger than 256 characters (the size of the `Buffer` variable) then a stack overflow occurs. Because the data can be fully controlled by an attacker and lack of ASLR, this vulnerability can easily be exploited to gain full code execution as SYSTEM on the machine running the service.
総合評価: CVE-2026-42369 は中リスク（54.2/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 0.51%、39 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 | 0.16% | 0.51% | +0.36% |
| 2 | 2026-05-04 | — | 0.16% | — |
EPSS の全履歴 （全 2 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 |
|---|---|---|---|---|---|---|
| 10.0 | 3.1 | CRITICAL |
|
3.9 | 6.0 | 0df08a0e-a200-4957-9bb0-084f562506f9 |
GHSA-8wjc-q3qj-wc8j · 深刻度： critical — GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras...
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| geovision_inc. | gv-vms_v20.0.2 | v20.0.2 | cpe:2.3:a:geovision_inc.:gv-vms_v20.0.2:v20.0.2:*:windows:*:*:*:*:* |