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CVE-2017-9524
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers…
High7.5EPSS 4.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 4.1% · top 9.3% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (8)
- RHSA-2017:1681 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [oss-security] 20170612 CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:1682 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 99011 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [qemu-devel] 20170526 [PATCH] nbd: Fully initialize client in case of failed negotiation (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2017:2408 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-3925 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- [qemu-devel] 20170608 [PATCH] nbd: Fix regression on resiliency to port scan (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .