How severe is CVE-2026-24933?

CVE-2026-24933 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-24933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-24933?

CVE-2026-24933 affects Asustor Data Master. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-24933?

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

Does CVE-2026-24933 have an EU (EUVD) identifier?

Yes. CVE-2026-24933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5284.

When was CVE-2026-24933 published?

CVE-2026-24933 was published on 2026-02-03 and last updated on 2026-06-17.

CVE-2026-24933

CVE-2026-24933 is a medium-severity vulnerability in Asustor Data Master with a CVSS 3.x base score of 5.9. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v4: 8.9
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5284
Weakness: CWE-295
Affected product: Asustor Data Master
Published: 2026-02-03
Last modified: 2026-06-17

Description

The API communication component fails to validate the SSL/TLS certificate when sending HTTPS requests to the server. An improper certificates validation vulnerability allows an unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to intercept the cleartext communication, potentially leading to the exposure of sensitive user information, including account emails, MD5 hashed passwords, and device serial numbers. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.

Frequently asked questions

What is CVE-2026-24933?: The API communication component fails to validate the SSL/TLS certificate when sending HTTPS requests to the server. An improper certificates validation vulnerability allows an unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to intercept the cleartext communication, potentially leading to the exposure of sensitive user information, including account emails, MD5 hashed passwords, and device serial numbers. Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.ROF1 as well as from ADM 5.0.0 through ADM 5.1.1.RCI1.
How severe is CVE-2026-24933?: CVE-2026-24933 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-24933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-24933?: CVE-2026-24933 affects Asustor Data Master. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-24933?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-24933 have an EU (EUVD) identifier?: Yes. CVE-2026-24933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5284.
When was CVE-2026-24933 published?: CVE-2026-24933 was published on 2026-02-03 and last updated on 2026-06-17.

References

https://www.asustor.com/security/security_advisory_detail?id=50

Affected products (1)

cpe:2.3:o:asustor:data_master:*:*:*:*:*:*:*:*

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