There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.
総合評価: CVE-2017-3736 は中リスク（61.1/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 10.13%、95 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +1.85% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 8.29% | 10.13% | +1.85% |
| 2 | 2026-05-14 | 8.49% | 8.29% | -0.21% |
| 3 | 2026-05-01 | — | 8.49% | — |
EPSS の全履歴 （全 59 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.5 | 3.0 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2017-3736 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-2017-3736 |
gentoo
|
normal | CVE-2017-3736: 1 GLSA(s) (201712-03), 1 atom(s) (dev-libs/openssl); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2017-3736 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2017-3736 |
suse
|
medium | CVE-2017-3736 severity moderate: SUSE including 503 source package names (0.9.1:libopenssl1_0_0-1.0.2j-60.16.1, 0.9.1:openssl-1.0.2j-60.16.1, …), 1077 product×package rows across 160 product lines (Container caasp/v4/default-http-backend, Container caasp/v4/dnsmasq-nanny, … (160 product lines)): Fixed 717, Known Not Affected 203, Known Affected 157. | https://www.suse.com/security/cve/CVE-2017-3736/ |
ubuntu
|
medium | CVE-2017-3736 medium priority: Ubuntu including 2 source packages (openssl, openssl098), 16 status rows across 8 suites (artful, bionic, cosmic, disco, trusty, upstream, xenial, zesty): DNE 7, released 7, needs-triage 1, not-affected 1. | https://ubuntu.com/security/CVE-2017-3736 |