The ff_put_pixels8_xy2_mmx function in rnd_template.c in Libav 11.7 allows remote attackers to cause a denial of service (invalid memory access and crash) via a crafted mp3 file. NOTE: this issue was originally reported as involving a NULL pointer dereference.
結論預警: CVE-2016-7477 綜合評估為中等風險(49.5/100):CVSS 技術影響為中級,利用機率(EPSS 1.71%) 核心證據: 近一日 EPSS 上升 +1.47%,被利用關注度持續升高。 強制指令: 梳理受影響資產並納入修補計畫。
風險隨態勢動態變化;本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性;百分位表示該 CVE 在已評分漏洞中的相對排名(越高表示相對更嚴重)。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化(新 − 舊) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.24% | 1.71% | +1.47% |
| 2 | 2025-03-19 | 0.25% | 0.24% | -0.01% |
| 3 | 2025-03-17 | — | 0.25% | — |
完整 EPSS 歷史 (共 5 筆)
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 5.5 | 3.0 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
low | CVE-2016-7477 low priority: Ubuntu including 1 source packages (libav), 8 status rows across 8 suites (artful, bionic, precise, trusty, upstream, xenial, yakkety, zesty): DNE 5, ignored 2, needs-triage 1. | https://ubuntu.com/security/CVE-2016-7477 |
| URL | 標籤 |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/09/21/6 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/93042 | Third Party Advisory VDB Entry |
| https://blogs.gentoo.org/ago/2016/09/20/libav-null-pointer-dereference-in-ff_put_pixels8_xy2_mmx-rnd_template-c/ | Third Party Advisory VDB Entry |