How severe is CVE-2023-39301?

CVE-2023-39301 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-39301 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39301?

CVE-2023-39301 primarily affects Qnap Qts. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-39301?

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

When was CVE-2023-39301 published?

CVE-2023-39301 was published on 2023-11-03 and last updated on 2026-06-17.

CVE-2023-39301

CVE-2023-39301 is a medium-severity vulnerability in Qnap Qts with a CVSS 3.x base score of 4.3. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Qnap Qts
Published: 2023-11-03
Last modified: 2026-06-17

Description

A server-side request forgery (SSRF) vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to read application data via a network. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2514 build 20230906 and later QTS 5.1.1.2491 build 20230815 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h5.1.1.2488 build 20230812 and later QuTScloud c5.1.0.2498 and later

Frequently asked questions

What is CVE-2023-39301?: A server-side request forgery (SSRF) vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to read application data via a network. We have already fixed the vulnerability in the following versions: QTS 5.0.1.2514 build 20230906 and later QTS 5.1.1.2491 build 20230815 and later QuTS hero h5.0.1.2515 build 20230907 and later QuTS hero h5.1.1.2488 build 20230812 and later QuTScloud c5.1.0.2498 and later
How severe is CVE-2023-39301?: CVE-2023-39301 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-39301 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39301?: CVE-2023-39301 primarily affects Qnap Qts. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-39301?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-39301 published?: CVE-2023-39301 was published on 2023-11-03 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-23-51

Affected products (3)

cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qutscloud:*:*:*:*:*:*:*:*

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