CVE-2017-15118

What it is

A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

11.9% chance of exploitation in the next 30 days (EPSS). Higher than most.

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2018-07-27 21:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 01:07 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 11.9% in the next 30 days (EPSS).
• Severity: 8.3 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2018-07-27 21:29 UTC

Last modified

2026-06-17 01:07 UTC

Exploit probability

11.9% · EPSS, next 30 days

Weakness

CWE-121

Record status

Modified

Affected

• Qemu < 2.11
• Canonical Ubuntu Linux 14.04
• Canonical Ubuntu Linux 16.04
• Canonical Ubuntu Linux 17.10
• Redhat Enterprise Linux 7.0

Attack profile CVSS 3.0 · 8.3

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2017-15118.md and follow it. Check whether this project is affected by CVE-2017-15118. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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