Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large inputs" to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later.
総合評価: CVE-2014-6272 は中リスク（58.7/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 2.08%、79 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 1.08% | 2.08% | +1.00% |
| 2 | 2025-07-13 | 0.51% | 1.08% | +0.57% |
| 3 | 2025-06-14 | — | 0.51% | — |
EPSS の全履歴 （全 8 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-2014-6272 not yet assigned priority: Debian including 1 source packages (libevent), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-6272 |
gentoo
|
normal | CVE-2014-6272: 1 GLSA(s) (201502-07), 1 atom(s) (dev-libs/libevent); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-6272 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2014-6272 |
suse
|
low | CVE-2014-6272 severity low: SUSE including 254 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 327 product×package rows across 65 product lines (HPE Helion OpenStack 8, SUSE Linux Enterprise Desktop 11 SP3, … (65 product lines)): Known Affected 157, Fixed 139, Known Not Affected 31. | https://www.suse.com/security/cve/CVE-2014-6272/ |
ubuntu
|
medium | CVE-2014-6272 medium priority: Ubuntu including 1 source packages (libevent), 5 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): released 5. | https://ubuntu.com/security/CVE-2014-6272 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.0 | cpe:2.3:a:libevent_project:libevent:1.4.0:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.1 | cpe:2.3:a:libevent_project:libevent:1.4.1:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.2 | cpe:2.3:a:libevent_project:libevent:1.4.2:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.3 | cpe:2.3:a:libevent_project:libevent:1.4.3:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.4 | cpe:2.3:a:libevent_project:libevent:1.4.4:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.5 | cpe:2.3:a:libevent_project:libevent:1.4.5:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.6 | cpe:2.3:a:libevent_project:libevent:1.4.6:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.7 | cpe:2.3:a:libevent_project:libevent:1.4.7:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.8 | cpe:2.3:a:libevent_project:libevent:1.4.8:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.9 | cpe:2.3:a:libevent_project:libevent:1.4.9:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.10 | cpe:2.3:a:libevent_project:libevent:1.4.10:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.11 | cpe:2.3:a:libevent_project:libevent:1.4.11:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.12 | cpe:2.3:a:libevent_project:libevent:1.4.12:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.13 | cpe:2.3:a:libevent_project:libevent:1.4.13:*:*:*:*:*:*:* |
| libevent_project | libevent | 1.4.14 | cpe:2.3:a:libevent_project:libevent:1.4.14:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.1 | cpe:2.3:a:libevent_project:libevent:2.0.1:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.2 | cpe:2.3:a:libevent_project:libevent:2.0.2:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.3 | cpe:2.3:a:libevent_project:libevent:2.0.3:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.4 | cpe:2.3:a:libevent_project:libevent:2.0.4:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.5 | cpe:2.3:a:libevent_project:libevent:2.0.5:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.6 | cpe:2.3:a:libevent_project:libevent:2.0.6:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.7 | cpe:2.3:a:libevent_project:libevent:2.0.7:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.8 | cpe:2.3:a:libevent_project:libevent:2.0.8:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.9 | cpe:2.3:a:libevent_project:libevent:2.0.9:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.10 | cpe:2.3:a:libevent_project:libevent:2.0.10:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.11 | cpe:2.3:a:libevent_project:libevent:2.0.11:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.12 | cpe:2.3:a:libevent_project:libevent:2.0.12:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.13 | cpe:2.3:a:libevent_project:libevent:2.0.13:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.14 | cpe:2.3:a:libevent_project:libevent:2.0.14:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.15 | cpe:2.3:a:libevent_project:libevent:2.0.15:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.16 | cpe:2.3:a:libevent_project:libevent:2.0.16:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.17 | cpe:2.3:a:libevent_project:libevent:2.0.17:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.18 | cpe:2.3:a:libevent_project:libevent:2.0.18:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.19 | cpe:2.3:a:libevent_project:libevent:2.0.19:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.20 | cpe:2.3:a:libevent_project:libevent:2.0.20:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.0.21 | cpe:2.3:a:libevent_project:libevent:2.0.21:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.1.1 | cpe:2.3:a:libevent_project:libevent:2.1.1:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.1.2 | cpe:2.3:a:libevent_project:libevent:2.1.2:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.1.3 | cpe:2.3:a:libevent_project:libevent:2.1.3:*:*:*:*:*:*:* |
| libevent_project | libevent | 2.1.4 | cpe:2.3:a:libevent_project:libevent:2.1.4:*:*:*:*:*:*:* |