The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.
结论预警: CVE-2016-4804 综合评估为低风险（37.3/100）：CVSS 技术影响为中级，利用概率偏低（EPSS 0.45%） 强制指令: 持续跟踪利用情报与 EPSS 变化，并适时复评优先级。
风险随态势动态变化；本站持续评估并同步更新本页展示内容。
EPSS 日更估计相对被利用可能性；百分位表示该 CVE 在已评分漏洞中的相对排名（越高表示相对更严重）。
| # | 日期 | 旧 EPSS 分数 | 新 EPSS 分数 | 变化（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-07-01 | 0.45% | 0.45% | -0.00% |
| 2 | 2026-06-15 | 0.12% | 0.45% | +0.33% |
| 3 | 2025-03-30 | — | 0.12% | — |
完整 EPSS 历史 （共 7 条）
该 CVE 的 CVSS 指标。
| 底座分 | 版本 | 严重度 | 向量 | 可利用性 | 影响 | 分数来源 |
|---|---|---|---|---|---|---|
| 6.2 | 3.0 | MEDIUM |
|
2.5 | 3.6 | [email protected] |
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-4804 not yet assigned priority: Debian including 1 source packages (dosfstools), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-4804 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2016-4804 |
suse
|
low | CVE-2016-4804 severity low: SUSE including 4 source package names (dosfstools, dosfstools-2.11-121.31.4.1, dosfstools-3.0.26-3.1, dosfstools-3.0.26-6.5), 53 product×package rows across 53 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (53 product lines)): Fixed 35, Known Not Affected 18. | https://www.suse.com/security/cve/CVE-2016-4804/ |
ubuntu
|
medium | CVE-2016-4804 medium priority: Ubuntu including 1 source packages (dosfstools), 7 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): released 5, not-affected 2. | https://ubuntu.com/security/CVE-2016-4804 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| dosfstools_project | dosfstools | <= 3.0.28 | cpe:2.3:a:dosfstools_project:dosfstools:*:*:*:*:*:*:*:* |
| opensuse | leap | 42.1 | cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.2 | cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 15.10 | cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |