Buffer overflow in the MSGFunctionDemarshall function in winscard_svc.c in the PC/SC Smart Card daemon (aka PCSCD) in MUSCLE PCSC-Lite 1.5.4 and earlier might allow local users to gain privileges via crafted SCARD_CONTROL message data, which is improperly demarshalled. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-0407.
総合評価: CVE-2009-4902 は低リスク（37.8/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.38%、30 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 | 0.09% | 0.38% | +0.29% |
| 2 | 2026-04-12 | 0.02% | 0.09% | +0.07% |
| 3 | 2026-01-30 | — | 0.02% | — |
EPSS の全履歴 （全 6 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 |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
3.1 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2009-4902 unimportant priority: Debian including 1 source packages (pcsc-lite), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2009-4902 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2009-4902 |
ubuntu
|
medium | CVE-2009-4902 medium priority: Ubuntu including 1 source packages (pcsc-lite), 6 status rows across 6 suites (dapper, hardy, jaunty, karmic, lucid, upstream): not-affected 5, released 1. | https://ubuntu.com/security/CVE-2009-4902 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| muscle | pcsc-lite | <= 1.5.4 | cpe:2.3:a:muscle:pcsc-lite:*:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.1.2 | cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta2:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.1.2 | cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta3:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.1.2 | cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta4:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.1.2 | cpe:2.3:a:muscle:pcsc-lite:1.1.2:beta5:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.0 | cpe:2.3:a:muscle:pcsc-lite:1.2.0:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.0 | cpe:2.3:a:muscle:pcsc-lite:1.2.0:rc1:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.0 | cpe:2.3:a:muscle:pcsc-lite:1.2.0:rc2:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.0 | cpe:2.3:a:muscle:pcsc-lite:1.2.0:rc3:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta1:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta10:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta2:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta3:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta4:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta5:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta6:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta7:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta8:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.2.9 | cpe:2.3:a:muscle:pcsc-lite:1.2.9:beta9:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.3.0 | cpe:2.3:a:muscle:pcsc-lite:1.3.0:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.3.1 | cpe:2.3:a:muscle:pcsc-lite:1.3.1:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.3.2 | cpe:2.3:a:muscle:pcsc-lite:1.3.2:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.3.3 | cpe:2.3:a:muscle:pcsc-lite:1.3.3:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.0 | cpe:2.3:a:muscle:pcsc-lite:1.4.0:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.1 | cpe:2.3:a:muscle:pcsc-lite:1.4.1:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.2 | cpe:2.3:a:muscle:pcsc-lite:1.4.2:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.3 | cpe:2.3:a:muscle:pcsc-lite:1.4.3:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.4 | cpe:2.3:a:muscle:pcsc-lite:1.4.4:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.99 | cpe:2.3:a:muscle:pcsc-lite:1.4.99:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.100 | cpe:2.3:a:muscle:pcsc-lite:1.4.100:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.101 | cpe:2.3:a:muscle:pcsc-lite:1.4.101:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.4.102 | cpe:2.3:a:muscle:pcsc-lite:1.4.102:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.5.0 | cpe:2.3:a:muscle:pcsc-lite:1.5.0:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.5.1 | cpe:2.3:a:muscle:pcsc-lite:1.5.1:*:*:*:*:*:*:* |
| muscle | pcsc-lite | 1.5.2 | cpe:2.3:a:muscle:pcsc-lite:1.5.2:*:*:*:*:*:*:* |