The Anti-Replay feature in the DTLS implementation in OpenSSL before 1.1.0 mishandles early use of a new epoch number in conjunction with a large sequence number, which allows remote attackers to cause a denial of service (false-positive packet drops) via spoofed DTLS records, related to rec_layer_d1.c and ssl3_record.c.
結論預警: CVE-2016-2181 綜合評估為中等風險（62.5/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 22.63%，百分位 97%） 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 強制指令: 被利用機率偏高—請盤點暴露面並優先安排修補。
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 | 24.27% | 22.63% | -1.63% |
| 2 | 2026-04-21 | 23.03% | 24.27% | +1.24% |
| 3 | 2026-03-04 | — | 23.03% | — |
完整 EPSS 歷史 （共 48 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-2181 not yet assigned priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-2181 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2016-2181 |
suse
|
medium | CVE-2016-2181 severity moderate: SUSE including 475 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 837 product×package rows across 107 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-SAP-BYOS, … (107 product lines)): Fixed 465, Known Not Affected 215, Known Affected 157. | https://www.suse.com/security/cve/CVE-2016-2181/ |
ubuntu
|
low | CVE-2016-2181 low priority: Ubuntu including 2 source packages (openssl, openssl098), 20 status rows across 10 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, xenial, yakkety, zesty): released 10, DNE 8, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2016-2181 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| openssl | openssl | 1.0.1 | cpe:2.3:a:openssl:openssl:1.0.1:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1a | cpe:2.3:a:openssl:openssl:1.0.1a:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1b | cpe:2.3:a:openssl:openssl:1.0.1b:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1c | cpe:2.3:a:openssl:openssl:1.0.1c:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1d | cpe:2.3:a:openssl:openssl:1.0.1d:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1e | cpe:2.3:a:openssl:openssl:1.0.1e:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1f | cpe:2.3:a:openssl:openssl:1.0.1f:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1g | cpe:2.3:a:openssl:openssl:1.0.1g:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1h | cpe:2.3:a:openssl:openssl:1.0.1h:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1i | cpe:2.3:a:openssl:openssl:1.0.1i:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1j | cpe:2.3:a:openssl:openssl:1.0.1j:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1k | cpe:2.3:a:openssl:openssl:1.0.1k:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1l | cpe:2.3:a:openssl:openssl:1.0.1l:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1m | cpe:2.3:a:openssl:openssl:1.0.1m:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1n | cpe:2.3:a:openssl:openssl:1.0.1n:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1o | cpe:2.3:a:openssl:openssl:1.0.1o:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1p | cpe:2.3:a:openssl:openssl:1.0.1p:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1q | cpe:2.3:a:openssl:openssl:1.0.1q:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1r | cpe:2.3:a:openssl:openssl:1.0.1r:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1s | cpe:2.3:a:openssl:openssl:1.0.1s:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.1t | cpe:2.3:a:openssl:openssl:1.0.1t:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2 | cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2a | cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2b | cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2c | cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2d | cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2e | cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2f | cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2g | cpe:2.3:a:openssl:openssl:1.0.2g:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2h | cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:* |
| oracle | linux | 6 | cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* |
| oracle | linux | 7 | cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* |