Use-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Security Services (NSS) before 3.21.1, as used in Mozilla Firefox before 45.0, allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted key data with DER encoding.
结论预警: CVE-2016-1979 综合评估为中等风险（64.6/100）：CVSS 技术影响为高级，利用概率（EPSS 2.17%） 核心证据: 近一日 EPSS 上升 +1.46%，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 | 0.71% | 2.17% | +1.46% |
| 2 | 2025-12-07 | 0.89% | 0.71% | -0.19% |
| 3 | 2025-03-30 | — | 0.89% | — |
完整 EPSS 历史 （共 11 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 |
|---|---|---|---|---|---|---|
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-1979 not yet assigned priority: Debian including 3 source packages (firefox, firefox-esr, nss), 11 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 11. | https://security-tracker.debian.org/tracker/CVE-2016-1979 |
gentoo
|
normal | CVE-2016-1979: 1 GLSA(s) (201605-06), 6 atom(s) (dev-libs/nspr, dev-libs/nss, mail-client/thunderbird, mail-client/thunderbird-bin, www-client/firefox, www-client/firefox-bin); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-1979 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2016-1979 |
suse
|
high | CVE-2016-1979 severity important: SUSE including 614 source package names (MozillaFirefox-102.11.0-150200.152.87.1, MozillaFirefox-115.10.0-150200.152.134.1, …), 927 product×package rows across 90 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (90 product lines)): Fixed 770, Known Affected 157. | https://www.suse.com/security/cve/CVE-2016-1979/ |
ubuntu
|
medium | CVE-2016-1979 medium priority: Ubuntu including 3 source packages (firefox, nss, thunderbird), 21 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): released 12, not-affected 9. | https://ubuntu.com/security/CVE-2016-1979 |
: <a href="http://cwe.mitre.org/data/definitions/416.html">CWE-416: Use After Free</a>
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| mozilla | firefox | <= 44.0.2 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | network_security_services | <= 3.21 | cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* |