6.3

CVE-2026-24934: asustor adm Improper Certificate Validation

CVSS: 6.3v4.0MediumAnalyzed
Published 03-02-2026Last modified 03-02-2026
Open JSON

Vulnerability summary

CVE-2026-24934 is a medium (CVSS 6.3) Improper Certificate Validation vulnerability in asustor adm. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.8% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.3/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.17%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-02-2026
    PublishedVulnerability first disclosed.
  2. 03-02-2026
    Last modifiedVulnerability information updated.

Description

The DDNS function uses an insecure HTTP connection or fails to validate the SSL/TLS certificate when querying an external server for the device's WAN IP address. An unauthenticated remote attacker can perform a Man-in-the-Middle (MitM) attack to spoof the response, leading the device to update its DDNS record with an incorrect IP address. 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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

+0.01 pp

From 0.16% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Asustor2 products
  • adm≥ 4.1.0, ≤ 4.3.3.ROF1 | ≥ 5.0.0, ≤ 5.1.1.RCI1
  • data_master≥ 4.1.0.rhu2, ≤ 4.3.3.rof1 | ≥ 5.0.0.ra82, < 5.1.2.re51

1 vendor · 2 products

References

1 links