GHSA-g7gw-mp9w-623w · 深刻度： high — GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability. This vulnerability...
GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the handling of palette data in AVI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28854.
総合評価: CVE-2026-2921 は中リスク（50.2/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 0.87%、54 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 | 2026-06-30 | 0.84% | 0.87% | +0.03% |
| 2 | 2026-06-15 | 0.03% | 0.84% | +0.81% |
| 3 | 2026-03-30 | — | 0.03% | — |
EPSS の全履歴 （全 4 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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c |
| 7.8 | 3.0 | HIGH |
|
1.8 | 5.9 | [email protected] |
GHSA-g7gw-mp9w-623w · 深刻度： high — GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability. This vulnerability...
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2026-2921: 1 source package rows (gstreamer); 29 state rows across 6 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 0, open 29. | https://security.alpinelinux.org/vuln/CVE-2026-2921 |
debian
|
not yet assigned | CVE-2026-2921 not yet assigned priority: Debian including 1 source packages (gst-plugins-base1.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-2921 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-2921 |
suse
|
high | CVE-2026-2921 severity important: SUSE including 15 source package names (gstreamer1-plugins-bad-free-1.16.1-6.el8_10, gstreamer1-plugins-bad-free-1.22.12-5.el9_7, …), 15 product×package rows across 2 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9): Fixed 15. | https://www.suse.com/security/cve/CVE-2026-2921/ |
ubuntu
|
medium | CVE-2026-2921 medium priority: Ubuntu including 1 source packages (gst-plugins-base1.0), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): released 4, needs-triage 3. | https://ubuntu.com/security/CVE-2026-2921 |