How severe is CVE-2023-26788?

CVE-2023-26788 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-2023-26788 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26788?

CVE-2023-26788 affects Veritas Netbackup Appliance Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26788?

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

When was CVE-2023-26788 published?

CVE-2023-26788 was published on 2023-04-10 and last updated on 2026-06-17.

CVE-2023-26788

CVE-2023-26788 is a medium-severity vulnerability in Veritas Netbackup Appliance Firmware 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)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Veritas Netbackup Appliance Firmware
Published: 2023-04-10
Last modified: 2026-06-17

Description

Veritas Appliance v4.1.0.1 is affected by Host Header Injection attacks. HTTP host header can be manipulated and cause the application to behave in unexpected ways. Any changes made to the header would just cause the request to be sent to a completely different Domain/IP address.

Frequently asked questions

What is CVE-2023-26788?: Veritas Appliance v4.1.0.1 is affected by Host Header Injection attacks. HTTP host header can be manipulated and cause the application to behave in unexpected ways. Any changes made to the header would just cause the request to be sent to a completely different Domain/IP address.
How severe is CVE-2023-26788?: CVE-2023-26788 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-2023-26788 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26788?: CVE-2023-26788 affects Veritas Netbackup Appliance Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26788?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-26788 published?: CVE-2023-26788 was published on 2023-04-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:veritas:netbackup_appliance_firmware:4.1.0.1:*:*:*:*:*:*:*

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