The gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init.
総合評価: CVE-2020-26571 は低リスク（33.3/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.40%、31 パーセンタイル） 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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 | 2026-06-15 | 0.04% | 0.40% | +0.35% |
| 2 | 2025-11-21 | 0.09% | 0.04% | -0.04% |
| 3 | 2025-11-18 | — | 0.09% | — |
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 |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2020-26571: 1 source package rows (opensc); 11 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 7, open 4. | https://security.alpinelinux.org/vuln/CVE-2020-26571 |
debian
|
not yet assigned | CVE-2020-26571 not yet assigned priority: Debian including 1 source packages (opensc), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-26571 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-26571 |
suse
|
medium | CVE-2020-26571 severity moderate: SUSE including 21 source package names (libopensc2-0.11.6-5.27.9.1, libopensc2-32bit-0.11.6-5.27.9.1, …), 36 product×package rows across 27 product lines (SUSE Liberty Linux 8, SUSE Linux Enterprise High Performance Computing 15-ESPOS, … (27 product lines)): Fixed 35, Known Not Affected 1. | https://www.suse.com/security/cve/CVE-2020-26571/ |
ubuntu
|
medium | CVE-2020-26571 medium priority: Ubuntu including 1 source packages (opensc), 15 status rows across 15 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): not-affected 8, released 3, ignored 2, DNE 1, needs-triage 1. | https://ubuntu.com/security/CVE-2020-26571 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| opensc_project | opensc | <= 0.20.0 | cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/11/24/4 | Mailing List Third Party Advisory |
| https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20612 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/ |