libcurl versions from 7.36.0 to before 7.64.0 is vulnerable to a heap buffer out-of-bounds read. The function handling incoming NTLM type-2 messages (`lib/vauth/ntlm.c:ntlm_decode_type2_target`) does not validate incoming data correctly and is subject to an integer overflow vulnerability. Using that overflow, a malicious or broken NTLM server could trick libcurl to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
総合評価: CVE-2018-16890 は高リスク(66.2/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 5.35%、92 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 +4.15% 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 | 1.20% | 5.35% | +4.15% |
| 2 | 2026-05-31 | 1.15% | 1.20% | +0.06% |
| 3 | 2026-05-29 | — | 1.15% | — |
EPSS の全履歴 (全 31 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.4 | 3.0 | MEDIUM |
|
2.8 | 2.5 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2018-16890: 1 source package rows (curl); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. | https://security.alpinelinux.org/vuln/CVE-2018-16890 |
debian
|
not yet assigned | CVE-2018-16890 not yet assigned priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-16890 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-16890 |
suse
|
medium | CVE-2018-16890 severity moderate: SUSE including 359 source package names (0.1.0:libcurl4-7.60.0-3.17.1, 0.1.75:libcurl4-7.60.0-3.17.1, …), 439 product×package rows across 98 product lines (Container caasp/v4/389-ds, Container caasp/v4/busybox, … (98 product lines)): Fixed 267, Known Affected 157, Known Not Affected 15. | https://www.suse.com/security/cve/CVE-2018-16890/ |
ubuntu
|
medium | CVE-2018-16890 medium priority: Ubuntu including 1 source packages (curl), 5 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): released 4, not-affected 1. | https://ubuntu.com/security/CVE-2018-16890 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| haxx | libcurl | >= 7.36.0, < 7.64.0 | cpe:2.3:a:haxx:libcurl:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.10 | cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| netapp | clustered_data_ontap | — | cpe:2.3:o:netapp:clustered_data_ontap:*:*:*:*:*:*:*:* |
| siemens | sinema_remote_connect_client | <= 2.0 | cpe:2.3:a:siemens:sinema_remote_connect_client:*:*:*:*:*:*:*:* |
| oracle | communications_operations_monitor | 3.4 | cpe:2.3:a:oracle:communications_operations_monitor:3.4:*:*:*:*:*:*:* |
| oracle | communications_operations_monitor | 4.0 | cpe:2.3:a:oracle:communications_operations_monitor:4.0:*:*:*:*:*:*:* |
| oracle | http_server | 12.2.1.3.0 | cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* |
| oracle | secure_global_desktop | 5.4 | cpe:2.3:a:oracle:secure_global_desktop:5.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | >= 13.1.0, <= 13.1.3 | cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | >= 14.0.0, <= 14.1.2 | cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
| f5 | big-ip_access_policy_manager | >= 15.0.0, <= 15.0.1 | cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |