Multiple buffer overflows in the CMU Cyrus SASL library before 2.1.23 might allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via strings that are used as input to the sasl_encode64 function in lib/saslutil.c.
総合評価: CVE-2009-0688 は中リスク（57.9/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 8.21%、94 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 | 39.48% | 8.21% | -31.27% |
| 2 | 2026-01-28 | 33.35% | 39.48% | +6.13% |
| 3 | 2025-12-01 | — | 33.35% | — |
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 |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2009-0688 not yet assigned priority: Debian including 1 source packages (cyrus-sasl2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2009-0688 |
gentoo
|
high | CVE-2009-0688: 1 GLSA(s) (200907-09), 1 atom(s) (dev-libs/cyrus-sasl); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-0688 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2009-0688 |
suse
|
high | CVE-2009-0688 severity important: SUSE including 142 source package names (cyrus-sasl-2.1.22-182.20.1, cyrus-sasl-2.1.26-12.5, …), 336 product×package rows across 37 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (37 product lines)): Fixed 336. | https://www.suse.com/security/cve/CVE-2009-0688/ |
ubuntu
|
medium | CVE-2009-0688 medium priority: Ubuntu including 1 source packages (cyrus-sasl2), 5 status rows across 5 suites (dapper, hardy, intrepid, jaunty, upstream): released 5. | https://ubuntu.com/security/CVE-2009-0688 |
The upstream fix for this issue is not backwards compatible and introduces an ABI change not allowed in Red Hat Enterprise Linux. Therefore, there is no plan to address this problem directly in cyrus-sasl packages. All applications shipped in Red Hat Enterprise Linux and using affected sasl_encode64() function were investigated and patched if their use of the function could have security consequences. See following bug report for further details: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-0688#c20
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| carnegie_mellon_university | cyrus-sasl | <= 2.1.22 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:*:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.4.1 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.4.1:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.0 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.0:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.2 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.2:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.3 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.3:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.5 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.5:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.10 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.10:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.11 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.11:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.13 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.13:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.15 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.15:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.16 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.16:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.20 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.20:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.21 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.21:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.22 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.22:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.23 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.23:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.24 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.24:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.26 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.26:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.27 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.27:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 1.5.28 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:1.5.28:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.0.0 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.0.0:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.0.1 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.0.1:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.0.2 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.0.2:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.0.3 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.0.3:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.0.4 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.0.4:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.0.5 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.0.5:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.0 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.0:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.1 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.1:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.2 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.2:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.3 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.3:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.5 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.5:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.6 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.6:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.7 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.7:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.8 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.8:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.9 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.9:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.10 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.10:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.11 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.11:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.12 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.12:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.13 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.13:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.14 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.14:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.15 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.15:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.16 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.16:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.17 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.17:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.18 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.18:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.19 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.19:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.20 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.20:*:*:*:*:*:*:* |
| carnegie_mellon_university | cyrus-sasl | 2.1.21 | cpe:2.3:a:carnegie_mellon_university:cyrus-sasl:2.1.21:*:*:*:*:*:*:* |