How severe is CVE-2025-55129?

CVE-2025-55129 has a CVSS 3.x base score of 5.4, 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 low, and availability none.

Is CVE-2025-55129 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55129?

CVE-2025-55129 affects Aquaplatform Revive Adserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55129?

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

Does CVE-2025-55129 have an EU (EUVD) identifier?

Yes. CVE-2025-55129 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200129.

When was CVE-2025-55129 published?

CVE-2025-55129 was published on 2025-12-02 and last updated on 2026-06-17.

CVE-2025-55129

CVE-2025-55129 is a medium-severity vulnerability in Aquaplatform Revive Adserver with a CVSS 3.x base score of 5.4. 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-176.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-200129
Weakness: CWE-176
Affected product: Aquaplatform Revive Adserver
Published: 2025-12-02
Last modified: 2026-06-17

Description

HackerOne community member Kassem S.(kassem_s94) has reported that username handling in Revive Adserver was still vulnerable to impersonation attacks after the fix for CVE-2025-52672, via several alternate techniques. Homoglyphs based impersonation has been independently reported by other HackerOne users, such as itz_hari_ and khoof.

Frequently asked questions

What is CVE-2025-55129?: HackerOne community member Kassem S.(kassem_s94) has reported that username handling in Revive Adserver was still vulnerable to impersonation attacks after the fix for CVE-2025-52672, via several alternate techniques. Homoglyphs based impersonation has been independently reported by other HackerOne users, such as itz_hari_ and khoof.
How severe is CVE-2025-55129?: CVE-2025-55129 has a CVSS 3.x base score of 5.4, 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 low, and availability none.
Is CVE-2025-55129 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55129?: CVE-2025-55129 affects Aquaplatform Revive Adserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55129?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-55129 have an EU (EUVD) identifier?: Yes. CVE-2025-55129 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-200129.
When was CVE-2025-55129 published?: CVE-2025-55129 was published on 2025-12-02 and last updated on 2026-06-17.

References

https://hackerone.com/reports/3434156

Affected products (1)

cpe:2.3:a:aquaplatform:revive_adserver:*:*:*:*:*:*:*:*

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