How severe is CVE-2023-34977?

CVE-2023-34977 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-34977 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34977?

CVE-2023-34977 affects Qnap Video Station. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34977?

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

When was CVE-2023-34977 published?

CVE-2023-34977 was published on 2023-10-13 and last updated on 2026-06-17.

CVE-2023-34977

CVE-2023-34977 is a medium-severity vulnerability in Qnap Video Station with a CVSS 3.x base score of 4.6. 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 4.6)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Qnap Video Station
Published: 2023-10-13
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability has been reported to affect Video Station. If exploited, the vulnerability could allow authenticated users to inject malicious code via a network. We have already fixed the vulnerability in the following version: Video Station 5.7.0 ( 2023/07/27 ) and later

Frequently asked questions

What is CVE-2023-34977?: A cross-site scripting (XSS) vulnerability has been reported to affect Video Station. If exploited, the vulnerability could allow authenticated users to inject malicious code via a network. We have already fixed the vulnerability in the following version: Video Station 5.7.0 ( 2023/07/27 ) and later
How severe is CVE-2023-34977?: CVE-2023-34977 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-34977 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34977?: CVE-2023-34977 affects Qnap Video Station. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34977?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-34977 published?: CVE-2023-34977 was published on 2023-10-13 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-23-52

Affected products (1)

cpe:2.3:a:qnap:video_station:*:*:*:*:*:*:*:*

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