PatchSiren

PatchSiren cyber security CVE debrief

CVE-2025-61166 Ascertia CVE debrief

CVE-2025-61166 is a medium-severity open redirect vulnerability in Ascertia SigningHub User v10.0. An attacker can redirect users to a malicious site via a crafted URL. Defenders should assess exposure, prioritize remediation, and verify user interactions. This vulnerability allows attackers to potentially redirect users to malicious sites, which could lead to phishing attacks or other security breaches. Defenders should verify user interactions to prevent potential phishing attacks and prioritize remediation of the open redirect vulnerability.

Vendor
Ascertia
Product
SigningHub User
CVSS
MEDIUM 6.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-06
Original CVE updated
2026-10-23
Advisory published
2026-04-06
Advisory updated
2026-10-23

Who should care

Defenders and security teams using Ascertia SigningHub User v10.0 should assess exposure and prioritize remediation of the open redirect vulnerability.

Why it matters

CVE-2025-61166 is a medium-severity open redirect vulnerability in Ascertia SigningHub User v10.0, allowing attackers to redirect users to malicious sites via crafted URLs. Defenders should assess exposure, prioritize remediation, and verify user interactions.

  • Defenders should verify user interactions to prevent potential phishing attacks
  • Remediation of the open redirect vulnerability is crucial to prevent exploitation
  • Security teams should monitor user activity for suspicious redirects

Technical summary

CVE-2025-61166 is a medium-severity vulnerability in Ascertia SigningHub User v10.0, allowing attackers to redirect users to malicious sites via crafted URLs. The vulnerability is an open redirect, which could be used to redirect users to a malicious website, potentially leading to phishing attacks or other security breaches. Defenders should assess exposure and prioritize remediation of the vulnerability.

Defensive priority

Defenders should prioritize verifying user interactions and assessing exposure to CVE-2025-61166, especially in environments using Ascertia SigningHub User v10.0.

Recommended defensive actions

  • Verify user interactions with Ascertia SigningHub User v10.0 to assess exposure
  • Prioritize remediation of the open redirect vulnerability
  • Monitor user activity for suspicious redirects

Evidence notes

The CVE record and NVD entry provide details on the open redirect vulnerability in Ascertia SigningHub User v10.0. Limited information is available on exploitation or affected versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-61166 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-61166

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-61166 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-61166

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.