fetchmail 5.9.9 through 6.3.19 does not properly limit the wait time after issuing a (1) STARTTLS or (2) STLS request, which allows remote servers to cause a denial of service (application hang) by acknowledging the request but not sending additional packets.
結論預警: CVE-2011-1947 綜合評估為中等風險（49.1/100）：CVSS 技術影響為中級，利用機率（EPSS 2.55%） 強制指令: 梳理受影響資產並納入修補計畫。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.44% | 2.55% | +0.11% |
| 2 | 2025-07-13 | 2.19% | 2.44% | +0.25% |
| 3 | 2025-03-30 | — | 2.19% | — |
完整 EPSS 歷史 （共 7 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2011-1947 unimportant priority: Debian including 1 source packages (fetchmail), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2011-1947 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2011-1947 |
suse
|
medium | CVE-2011-1947 severity moderate: SUSE including 13 source package names (fetchmail-6.3.26-12.3, fetchmail-6.3.26-13.4, …), 40 product×package rows across 26 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (26 product lines)): Fixed 40. | https://www.suse.com/security/cve/CVE-2011-1947/ |
ubuntu
|
low | CVE-2011-1947 low priority: Ubuntu including 1 source packages (fetchmail), 27 status rows across 27 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hardy, hirsute, impish, jammy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 19, not-affected 6, DNE 1, pending 1. | https://ubuntu.com/security/CVE-2011-1947 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| fetchmail | fetchmail | 5.9.9 | cpe:2.3:a:fetchmail:fetchmail:5.9.9:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 5.9.10 | cpe:2.3:a:fetchmail:fetchmail:5.9.10:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 5.9.11 | cpe:2.3:a:fetchmail:fetchmail:5.9.11:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 5.9.13 | cpe:2.3:a:fetchmail:fetchmail:5.9.13:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.0.0 | cpe:2.3:a:fetchmail:fetchmail:6.0.0:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.1.0 | cpe:2.3:a:fetchmail:fetchmail:6.1.0:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.1.3 | cpe:2.3:a:fetchmail:fetchmail:6.1.3:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.0 | cpe:2.3:a:fetchmail:fetchmail:6.2.0:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.1 | cpe:2.3:a:fetchmail:fetchmail:6.2.1:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.2 | cpe:2.3:a:fetchmail:fetchmail:6.2.2:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.3 | cpe:2.3:a:fetchmail:fetchmail:6.2.3:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.4 | cpe:2.3:a:fetchmail:fetchmail:6.2.4:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.5 | cpe:2.3:a:fetchmail:fetchmail:6.2.5:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.5.1 | cpe:2.3:a:fetchmail:fetchmail:6.2.5.1:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.5.2 | cpe:2.3:a:fetchmail:fetchmail:6.2.5.2:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.5.4 | cpe:2.3:a:fetchmail:fetchmail:6.2.5.4:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.6 | cpe:2.3:a:fetchmail:fetchmail:6.2.6:pre4:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.6 | cpe:2.3:a:fetchmail:fetchmail:6.2.6:pre8:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.6 | cpe:2.3:a:fetchmail:fetchmail:6.2.6:pre9:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.9 | cpe:2.3:a:fetchmail:fetchmail:6.2.9:rc10:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.9 | cpe:2.3:a:fetchmail:fetchmail:6.2.9:rc3:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.9 | cpe:2.3:a:fetchmail:fetchmail:6.2.9:rc4:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.9 | cpe:2.3:a:fetchmail:fetchmail:6.2.9:rc5:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.9 | cpe:2.3:a:fetchmail:fetchmail:6.2.9:rc7:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.9 | cpe:2.3:a:fetchmail:fetchmail:6.2.9:rc8:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.2.9 | cpe:2.3:a:fetchmail:fetchmail:6.2.9:rc9:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.0 | cpe:2.3:a:fetchmail:fetchmail:6.3.0:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.1 | cpe:2.3:a:fetchmail:fetchmail:6.3.1:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.2 | cpe:2.3:a:fetchmail:fetchmail:6.3.2:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.3 | cpe:2.3:a:fetchmail:fetchmail:6.3.3:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.4 | cpe:2.3:a:fetchmail:fetchmail:6.3.4:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.5 | cpe:2.3:a:fetchmail:fetchmail:6.3.5:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.6 | cpe:2.3:a:fetchmail:fetchmail:6.3.6:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.6 | cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc1:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.6 | cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc2:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.6 | cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc3:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.6 | cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc4:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.6 | cpe:2.3:a:fetchmail:fetchmail:6.3.6:rc5:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.7 | cpe:2.3:a:fetchmail:fetchmail:6.3.7:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.8 | cpe:2.3:a:fetchmail:fetchmail:6.3.8:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.9 | cpe:2.3:a:fetchmail:fetchmail:6.3.9:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.9 | cpe:2.3:a:fetchmail:fetchmail:6.3.9:rc2:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.10 | cpe:2.3:a:fetchmail:fetchmail:6.3.10:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.11 | cpe:2.3:a:fetchmail:fetchmail:6.3.11:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.12 | cpe:2.3:a:fetchmail:fetchmail:6.3.12:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.13 | cpe:2.3:a:fetchmail:fetchmail:6.3.13:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.14 | cpe:2.3:a:fetchmail:fetchmail:6.3.14:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.15 | cpe:2.3:a:fetchmail:fetchmail:6.3.15:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.16 | cpe:2.3:a:fetchmail:fetchmail:6.3.16:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.17 | cpe:2.3:a:fetchmail:fetchmail:6.3.17:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.18 | cpe:2.3:a:fetchmail:fetchmail:6.3.18:*:*:*:*:*:*:* |
| fetchmail | fetchmail | 6.3.19 | cpe:2.3:a:fetchmail:fetchmail:6.3.19:*:*:*:*:*:*:* |