Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.
结论预警: CVE-2011-2480 综合评估为中等风险(56.5/100):CVSS 技术影响为高级,利用概率(EPSS 1.59%) 核心证据: 近一日 EPSS 上升 +1.18%,被利用关注度持续升高。 强制指令: 梳理受影响资产并纳入修补计划。
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 | 2026-06-15 | 0.42% | 1.59% | +1.18% |
| 2 | 2025-03-30 | 0.81% | 0.42% | -0.39% |
| 3 | 2025-03-29 | — | 0.81% | — |
完整 EPSS 历史 (共 6 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
low | CVE-2011-2480 low priority: Ubuntu including 1 source packages (kfreebsd-8), 10 status rows across 10 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, upstream): DNE 7, ignored 2, released 1. | https://ubuntu.com/security/CVE-2011-2480 |
| URL | 标签 |
|---|---|
| https://access.redhat.com/security/cve/cve-2011-2480 | Broken Link |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631160 | Third Party Advisory |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=631161 | Third Party Advisory |
| https://security-tracker.debian.org/tracker/CVE-2011-2480 | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2011/06/20/15 | Mailing List Third Party Advisory |