An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.
結論預警: CVE-2017-7539 綜合評估為中等風險(55.9/100):CVSS 技術影響為中級,利用機率偏高(EPSS 5.53%,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 +2.56%,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 | 2.97% | 5.53% | +2.56% |
| 2 | 2026-05-24 | 2.75% | 2.97% | +0.21% |
| 3 | 2025-12-14 | — | 2.75% | — |
完整 EPSS 歷史 (共 27 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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.0 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2017-7539 unimportant priority: Debian including 1 source packages (qemu), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2017-7539 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2017-7539 |
ubuntu
|
medium | CVE-2017-7539 medium priority: Ubuntu including 2 source packages (qemu, qemu-kvm), 8 status rows across 4 suites (trusty, upstream, xenial, zesty): DNE 3, not-affected 3, needed 2. | https://ubuntu.com/security/CVE-2017-7539 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| qemu | qemu | < 2.10.1 | cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* |
| redhat | openstack | 6.0 | cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:* |
| redhat | openstack | 7.0 | cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:* |
| redhat | openstack | 8 | cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:* |
| redhat | openstack | 9 | cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:* |
| redhat | openstack | 10 | cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* |
| redhat | openstack | 11 | cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:* |
| redhat | virtualization | 4.0 | cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* |
| redhat | virtualization | 3.0 | cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://www.openwall.com/lists/oss-security/2017/07/21/4 | Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/99944 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2017:2628 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:3466 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:3470 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:3471 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:3472 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:3473 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:3474 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7539 | Issue Tracking Patch Third Party Advisory |
| https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b | |
| https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=ff82911cd3f69f028f2537825c9720ff78bc3f19 |