How severe is CVE-2023-28759?

CVE-2023-28759 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-28759 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28759?

CVE-2023-28759 affects Veritas Netbackup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28759?

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

When was CVE-2023-28759 published?

CVE-2023-28759 was published on 2023-03-23 and last updated on 2026-06-17.

CVE-2023-28759

CVE-2023-28759 is a high-severity vulnerability in Veritas Netbackup with a CVSS 3.x base score of 7.8. 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-427.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-427
Affected product: Veritas Netbackup
Published: 2023-03-23
Last modified: 2026-06-17

Description

An issue was discovered in Veritas NetBackup before 10.0 on Windows. A vulnerability in the way the client validates the path to a DLL prior to loading may allow a lower-level user to elevate privileges and compromise the system.

Frequently asked questions

What is CVE-2023-28759?: An issue was discovered in Veritas NetBackup before 10.0 on Windows. A vulnerability in the way the client validates the path to a DLL prior to loading may allow a lower-level user to elevate privileges and compromise the system.
How severe is CVE-2023-28759?: CVE-2023-28759 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-28759 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28759?: CVE-2023-28759 affects Veritas Netbackup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28759?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-28759 published?: CVE-2023-28759 was published on 2023-03-23 and last updated on 2026-06-17.

References

https://www.veritas.com/content/support/en_US/security/VTS23-006

Affected products (1)

cpe:2.3:a:veritas:netbackup:*:*:*:*:*:*:*:*

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