Stack-based buffer overflow in the parseLegacySyslogMsg function in tools/syslogd.c in rsyslogd in rsyslog 4.6.x before 4.6.8 and 5.2.0 through 5.8.4 might allow remote attackers to cause a denial of service (application exit) via a long TAG in a legacy syslog message.
総合評価: CVE-2011-3200 は中リスク（49/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 20.76%、97 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。 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 | 65.08% | 20.76% | -44.32% |
| 2 | 2026-06-13 | 63.91% | 65.08% | +1.17% |
| 3 | 2026-05-16 | — | 63.91% | — |
EPSS の全履歴 （全 14 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 |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2011-3200 low priority: Debian including 1 source packages (rsyslog), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2011-3200 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2011-3200 |
suse
|
medium | CVE-2011-3200 severity moderate: SUSE including 129 source package names (rsyslog-5.10.1-0.11.1, rsyslog-5.10.1-0.7.49, …), 166 product×package rows across 23 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (23 product lines)): Fixed 166. | https://www.suse.com/security/cve/CVE-2011-3200/ |
ubuntu
|
low | CVE-2011-3200 low priority: Ubuntu including 1 source packages (rsyslog), 5 status rows across 5 suites (hardy, lucid, maverick, natty, upstream): not-affected 3, released 2. | https://ubuntu.com/security/CVE-2011-3200 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| rsyslog | rsyslog | 4.6.0 | cpe:2.3:a:rsyslog:rsyslog:4.6.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 4.6.1 | cpe:2.3:a:rsyslog:rsyslog:4.6.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 4.6.2 | cpe:2.3:a:rsyslog:rsyslog:4.6.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 4.6.3 | cpe:2.3:a:rsyslog:rsyslog:4.6.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 4.6.4 | cpe:2.3:a:rsyslog:rsyslog:4.6.4:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 4.6.5 | cpe:2.3:a:rsyslog:rsyslog:4.6.5:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 4.6.6 | cpe:2.3:a:rsyslog:rsyslog:4.6.6:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 4.6.7 | cpe:2.3:a:rsyslog:rsyslog:4.6.7:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.2.0 | cpe:2.3:a:rsyslog:rsyslog:5.2.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.2.1 | cpe:2.3:a:rsyslog:rsyslog:5.2.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.2.2 | cpe:2.3:a:rsyslog:rsyslog:5.2.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.3.1 | cpe:2.3:a:rsyslog:rsyslog:5.3.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.3.2 | cpe:2.3:a:rsyslog:rsyslog:5.3.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.3.3 | cpe:2.3:a:rsyslog:rsyslog:5.3.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.3.4 | cpe:2.3:a:rsyslog:rsyslog:5.3.4:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.3.5 | cpe:2.3:a:rsyslog:rsyslog:5.3.5:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.3.6 | cpe:2.3:a:rsyslog:rsyslog:5.3.6:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.3.7 | cpe:2.3:a:rsyslog:rsyslog:5.3.7:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.4.0 | cpe:2.3:a:rsyslog:rsyslog:5.4.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.4.1 | cpe:2.3:a:rsyslog:rsyslog:5.4.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.4.2 | cpe:2.3:a:rsyslog:rsyslog:5.4.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.0 | cpe:2.3:a:rsyslog:rsyslog:5.5.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.1 | cpe:2.3:a:rsyslog:rsyslog:5.5.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.2 | cpe:2.3:a:rsyslog:rsyslog:5.5.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.3 | cpe:2.3:a:rsyslog:rsyslog:5.5.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.4 | cpe:2.3:a:rsyslog:rsyslog:5.5.4:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.5 | cpe:2.3:a:rsyslog:rsyslog:5.5.5:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.6 | cpe:2.3:a:rsyslog:rsyslog:5.5.6:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.5.7 | cpe:2.3:a:rsyslog:rsyslog:5.5.7:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.6.0 | cpe:2.3:a:rsyslog:rsyslog:5.6.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.6.1 | cpe:2.3:a:rsyslog:rsyslog:5.6.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.6.2 | cpe:2.3:a:rsyslog:rsyslog:5.6.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.6.3 | cpe:2.3:a:rsyslog:rsyslog:5.6.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.6.4 | cpe:2.3:a:rsyslog:rsyslog:5.6.4:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.6.5 | cpe:2.3:a:rsyslog:rsyslog:5.6.5:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.0 | cpe:2.3:a:rsyslog:rsyslog:5.7.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.1 | cpe:2.3:a:rsyslog:rsyslog:5.7.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.2 | cpe:2.3:a:rsyslog:rsyslog:5.7.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.3 | cpe:2.3:a:rsyslog:rsyslog:5.7.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.4 | cpe:2.3:a:rsyslog:rsyslog:5.7.4:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.5 | cpe:2.3:a:rsyslog:rsyslog:5.7.5:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.6 | cpe:2.3:a:rsyslog:rsyslog:5.7.6:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.7 | cpe:2.3:a:rsyslog:rsyslog:5.7.7:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.8 | cpe:2.3:a:rsyslog:rsyslog:5.7.8:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.9 | cpe:2.3:a:rsyslog:rsyslog:5.7.9:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.7.10 | cpe:2.3:a:rsyslog:rsyslog:5.7.10:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.8.0 | cpe:2.3:a:rsyslog:rsyslog:5.8.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.8.1 | cpe:2.3:a:rsyslog:rsyslog:5.8.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.8.2 | cpe:2.3:a:rsyslog:rsyslog:5.8.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.8.3 | cpe:2.3:a:rsyslog:rsyslog:5.8.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 5.8.4 | cpe:2.3:a:rsyslog:rsyslog:5.8.4:*:*:*:*:*:*:* |