CVE-2025-56689
CVE-2025-56689 is a medium-severity vulnerability in Quest One Identity with a CVSS 3.x base score of 4.6. 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-290.
Key facts
- Severity: Medium (CVSS 3.x base score 4.6)
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-26603
- Weakness: CWE-290
- Affected product: Quest One Identity
- Published:
- Last modified:
Description
One Identity by Quest Safeguard for Privileged Passwords Appliance 7.5.1.20903 is vulnerable to One Time Password (OTP)/Multifactor Authentication (MFA) bypass using response manipulation. An attacker who intercepts or captures a valid OTP response can bypass the OTP verification step by replaying the same response. NOTE: this is disputed by the Supplier because, by design, the product successfully authenticates a client that possesses a cookie whose validity time interval includes the current time, and thus authentication after any type of "interception" is not a violation of the security model. (The cookie has the HttpOnly attribute.)
Frequently asked questions
- What is CVE-2025-56689?
- One Identity by Quest Safeguard for Privileged Passwords Appliance 7.5.1.20903 is vulnerable to One Time Password (OTP)/Multifactor Authentication (MFA) bypass using response manipulation. An attacker who intercepts or captures a valid OTP response can bypass the OTP verification step by replaying the same response. NOTE: this is disputed by the Supplier because, by design, the product successfully authenticates a client that possesses a cookie whose validity time interval includes the current time, and thus authentication after any type of "interception" is not a violation of the security model. (The cookie has the HttpOnly attribute.)
- How severe is CVE-2025-56689?
- CVE-2025-56689 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability low.
- Is CVE-2025-56689 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-56689?
- CVE-2025-56689 affects Quest One Identity. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-56689?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-56689 have an EU (EUVD) identifier?
- Yes. CVE-2025-56689 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26603.
- When was CVE-2025-56689 published?
- CVE-2025-56689 was published on 2025-09-03 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:quest:one_identity:7.5.1.20903:*:*:*:*:*:*:*
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