In Network Security Services (NSS) before 3.36.7 and before 3.41.1, a malformed signature can cause a crash due to a null dereference, resulting in a Denial of Service.
総合評価: CVE-2018-18508 は中リスク(47.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.43%、63 パーセンタイル) 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 2026-05-08 | 0.56% | 0.43% | -0.12% |
| 2 | 2026-01-11 | 0.32% | 0.56% | +0.24% |
| 3 | 2025-11-21 | — | 0.32% | — |
EPSS の全履歴 (全 13 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 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2018-18508 not yet assigned priority: Debian including 1 source packages (nss), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-18508 |
gentoo
|
normal | CVE-2018-18508: 1 GLSA(s) (202003-37), 1 atom(s) (dev-libs/nss); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-18508 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-18508 |
suse
|
medium | CVE-2018-18508 severity moderate: SUSE including 478 source package names (1.1.1.0.1.5.102:libfreebl3-3.47.1-3.22.1, 1.1.1.0.1.5.102:libsoftokn3-3.47.1-3.22.1, …), 1011 product×package rows across 304 product lines (Container bci/bci-sle15-kernel-module-devel, Container bci/kiwi, … (304 product lines)): Fixed 709, Known Affected 157, Known Not Affected 145. | https://www.suse.com/security/cve/CVE-2018-18508/ |
ubuntu
|
medium | CVE-2018-18508 medium priority: Ubuntu including 1 source packages (nss), 5 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): released 5. | https://ubuntu.com/security/CVE-2018-18508 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| mozilla | network_security_services | < 3.36.7 | cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* |
| mozilla | network_security_services | >= 3.41, < 3.41.1 | cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_mx5000_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_mx5000_firmware:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_rx1400_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_rx1400_firmware:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_rx1500_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_rx1500_firmware:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_rx1501_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_rx1501_firmware:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_rx1510_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_rx1510_firmware:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_rx1511_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_rx1511_firmware:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_rx1512_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_rx1512_firmware:*:*:*:*:*:*:*:* |
| siemens | ruggedcom_rox_rx5000_firmware | < 2.14.0 | cpe:2.3:o:siemens:ruggedcom_rox_rx5000_firmware:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf | Third Party Advisory |
| https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.36.7_release_notes | Release Notes Vendor Advisory |
| https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.41.1_release_notes | Release Notes Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-040-04 | Third Party Advisory US Government Resource |