CVE-2025-28172
CVE-2025-28172 is a medium-severity vulnerability in Grandstream Ucm6510 Firmware with a CVSS 3.x base score of 6.5. 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-307.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-23001
- Weakness: CWE-307
- Affected product: Grandstream Ucm6510 Firmware
- Published:
- Last modified:
Description
Grandstream Networks UCM6510 v1.0.20.52 and before is vulnerable to Improper Restriction of Excessive Authentication Attempts. An attacker can perform an arbitrary number of authentication attempts using different passwords and eventually gain access to the targeted account using a brute force attack.
Frequently asked questions
- What is CVE-2025-28172?
- Grandstream Networks UCM6510 v1.0.20.52 and before is vulnerable to Improper Restriction of Excessive Authentication Attempts. An attacker can perform an arbitrary number of authentication attempts using different passwords and eventually gain access to the targeted account using a brute force attack.
- How severe is CVE-2025-28172?
- CVE-2025-28172 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2025-28172 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-28172?
- CVE-2025-28172 affects Grandstream Ucm6510 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-28172?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-28172 have an EU (EUVD) identifier?
- Yes. CVE-2025-28172 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23001.
- When was CVE-2025-28172 published?
- CVE-2025-28172 was published on 2025-07-29 and last updated on 2026-07-05.
References
EU advisories (EUVD)
Affected products (1)
- cpe:2.3:o:grandstream:ucm6510_firmware:*:*:*:*:*:*:*:*
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