The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released.
結論預警: CVE-2007-4103 綜合評估為高風險（65.6/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 5.94%，百分位 92%） 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 近一日 EPSS 上升 +3.32%，被利用關注度持續升高。 強制指令: 被利用機率偏高—請盤點暴露面並優先安排修補。
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 | 2.62% | 5.94% | +3.32% |
| 2 | 2026-03-19 | 2.69% | 2.62% | -0.07% |
| 3 | 2025-12-06 | — | 2.69% | — |
完整 EPSS 歷史 （共 21 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.8 | 2.0 | HIGH |
|
10.0 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2007-4103: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2007-4103 |
debian
|
not yet assigned | CVE-2007-4103 not yet assigned priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2007-4103 |
gentoo
|
high | CVE-2007-4103: 1 GLSA(s) (200802-11), 1 atom(s) (net-misc/asterisk); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-4103 |
ubuntu
|
medium | CVE-2007-4103 medium priority: Ubuntu including 1 source packages (asterisk), 5 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): not-affected 4, needs-triage 1. | https://ubuntu.com/security/CVE-2007-4103 |
| URL | 標籤 |
|---|---|
| http://bugs.gentoo.org/show_bug.cgi?id=185713 | Issue Tracking Patch |
| http://ftp.digium.com/pub/asa/ASA-2007-018.pdf | Broken Link Patch |
| http://osvdb.org/38197 | Broken Link |
| http://secunia.com/advisories/26274 | Broken Link Patch Vendor Advisory |
| http://secunia.com/advisories/29051 | Broken Link |
| http://security.gentoo.org/glsa/glsa-200802-11.xml | Third Party Advisory |
| http://securityreason.com/securityalert/2960 | Broken Link |
| http://www.securityfocus.com/archive/1/475069/100/0/threaded | Broken Link Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/24950 | Broken Link Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id?1018472 | Broken Link Third Party Advisory VDB Entry |
| http://www.vupen.com/english/advisories/2007/2701 | Broken Link |