CVE-2017-9978

5.3 MEDIUM 5% exploit odds No fix listed

What it is

On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, a flaw was found with the error message sent as a response for users that don't exist on the system. An attacker could leverage this information to fine-tune and enumerate valid accounts on the system by searching for common usernames.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 4.7% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2017-08-28 19:29 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 01:29 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 4.7% in the next 30 days (EPSS).
Severity: 5.3 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2017-08-28 19:29 UTC
Last modified: 2026-06-17 01:29 UTC
Exploit probability: 4.7% · EPSS, next 30 days
Weakness: CWE-200 · Information exposure
Record status: Modified

Affected

Osnexus Quantastor ≤ 4.3.0

Attack profile CVSS 3.0 · 5.3

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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-2017-9978.md and follow it. Check whether this project is affected by CVE-2017-9978. 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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References

NVD record · CVE.org record