How severe is CVE-2017-17423?

CVE-2017-17423 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-17423 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17423?

CVE-2017-17423 affects Quest Netvault Backup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-17423?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2017-17423 published?

CVE-2017-17423 was published on 2018-02-08 and last updated on 2026-06-17.

CVE-2017-17423

CVE-2017-17423 is a critical-severity vulnerability in Quest Netvault Backup with a CVSS 3.x base score of 9.8. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Quest Netvault Backup
Published: 2018-02-08
Last modified: 2026-06-17

Description

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NVBUBackupSegment Get method requests. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of the underlying database. Was ZDI-CAN-4234.

Frequently asked questions

What is CVE-2017-17423?: This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Quest NetVault Backup 11.3.0.12. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of NVBUBackupSegment Get method requests. The issue results from the lack of proper validation of a user-supplied string before using it to construct SQL queries. An attacker can leverage this vulnerability to execute code in the context of the underlying database. Was ZDI-CAN-4234.
How severe is CVE-2017-17423?: CVE-2017-17423 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-17423 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17423?: CVE-2017-17423 affects Quest Netvault Backup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-17423?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2017-17423 published?: CVE-2017-17423 was published on 2018-02-08 and last updated on 2026-06-17.

References

https://zerodayinitiative.com/advisories/ZDI-17-976

Affected products (1)

cpe:2.3:a:quest:netvault_backup:11.3.0.12:*:*:*:*:*:*:*

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