How severe is CVE-2017-9979?

CVE-2017-9979 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-9979 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9979?

CVE-2017-9979 affects Osnexus Quantastor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9979?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-9979 published?

CVE-2017-9979 was published on 2017-08-28 and last updated on 2026-06-17.

CVE-2017-9979

CVE-2017-9979 is a medium-severity vulnerability in Osnexus Quantastor with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Osnexus Quantastor
Published: 2017-08-28
Last modified: 2026-06-17

Description

On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, if the REST call invoked does not exist, an error will be triggered containing the invalid method previously invoked. The response sent to the user isn't sanitized in this case. An attacker can leverage this issue by including arbitrary HTML or JavaScript code as a parameter, aka XSS.

Frequently asked questions

What is CVE-2017-9979?: On the OSNEXUS QuantaStor v4 virtual appliance before 4.3.1, if the REST call invoked does not exist, an error will be triggered containing the invalid method previously invoked. The response sent to the user isn't sanitized in this case. An attacker can leverage this issue by including arbitrary HTML or JavaScript code as a parameter, aka XSS.
How severe is CVE-2017-9979?: CVE-2017-9979 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-9979 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9979?: CVE-2017-9979 affects Osnexus Quantastor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9979?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-9979 published?: CVE-2017-9979 was published on 2017-08-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*

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