How severe is CVE-2024-27128?

CVE-2024-27128 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2024-27128 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-27128?

CVE-2024-27128 primarily affects Qnap Qts. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-27128?

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

Does CVE-2024-27128 have an EU (EUVD) identifier?

Yes. CVE-2024-27128 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-24378.

When was CVE-2024-27128 published?

CVE-2024-27128 was published on 2024-05-21 and last updated on 2026-06-17.

CVE-2024-27128

CVE-2024-27128 is a medium-severity vulnerability in Qnap Qts with a CVSS 3.x base score of 6.4. 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-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-24378
Weakness: CWE-120
Affected product: Qnap Qts
Published: 2024-05-21
Last modified: 2026-06-17

Description

A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute code via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and later

Frequently asked questions

What is CVE-2024-27128?: A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to execute code via a network. We have already fixed the vulnerability in the following version: QTS 5.1.7.2770 build 20240520 and later QuTS hero h5.1.7.2770 build 20240520 and later
How severe is CVE-2024-27128?: CVE-2024-27128 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2024-27128 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-27128?: CVE-2024-27128 primarily affects Qnap Qts. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-27128?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-27128 have an EU (EUVD) identifier?: Yes. CVE-2024-27128 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-24378.
When was CVE-2024-27128 published?: CVE-2024-27128 was published on 2024-05-21 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-24-23

Affected products (23)

cpe:2.3:o:qnap:qts:5.1.0.2348:build_20230325:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.0.2399:build_20230515:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.0.2418:build_20230603:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.0.2444:build_20230629:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.0.2466:build_20230721:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.1.2491:build_20230815:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.2.2533:build_20230926:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.3.2578:build_20231110:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.4.2596:build_20231128:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.5.2645:build_20240116:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.5.2679:build_20240219:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:5.1.6.2722:build_20240402:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.0.2409:build_20230525:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.0.2424:build_20230609:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.0.2453:build_20230708:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.0.2466:build_20230721:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.1.2488:build_20230812:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.2.2534:build_20230927:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.3.2578:build_20231110:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.4.2596:build_20231128:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.5.2647:build_20240118:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.5.2680:build_20240220:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:h5.1.6.2734:build_20240414:*:*:*:*:*:*

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