The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in the ASN.1 BIO implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (memory consumption) via a short invalid encoding.
結論預警: CVE-2016-2109 綜合評估為中等風險（59.3/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 29.21%，百分位 98%） 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。
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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 | 57.94% | 29.21% | -28.73% |
| 2 | 2026-06-04 | 59.27% | 57.94% | -1.32% |
| 3 | 2026-04-21 | — | 59.27% | — |
完整 EPSS 歷史 （共 53 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] |
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-2109 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-2016-2109 |
gentoo
|
normal | CVE-2016-2109: 1 GLSA(s) (201612-16), 1 atom(s) (dev-libs/openssl); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-2109 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2016-2109 |
suse
|
medium | CVE-2016-2109 severity moderate: SUSE including 481 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, …), 842 product×package rows across 107 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-SAP-BYOS, … (107 product lines)): Fixed 472, Known Not Affected 213, Known Affected 157. | https://www.suse.com/security/cve/CVE-2016-2109/ |
ubuntu
|
medium | CVE-2016-2109 medium priority: Ubuntu including 2 source packages (openssl, openssl098), 22 status rows across 11 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, wily, xenial, yakkety, zesty): released 11, DNE 9, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2016-2109 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| openssl | openssl | <= 1.0.1s | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2 | cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:* |
| openssl | openssl | 1.0.2 | cpe:2.3:a:openssl:openssl:1.0.2:beta1:*:*:*:*:*:* |
| openssl | openssl | 1.0.2 | cpe:2.3:a:openssl:openssl:1.0.2:beta2:*:*:*:*:*:* |
| openssl | openssl | 1.0.2 | cpe:2.3:a:openssl:openssl:1.0.2:beta3:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 7.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node_eus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.2 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 6.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |