How severe is CVE-2025-55000?

CVE-2025-55000 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-55000 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-55000?

CVE-2025-55000 affects Openbao. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-55000?

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

Does CVE-2025-55000 have an EU (EUVD) identifier?

Yes. CVE-2025-55000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24034.

When was CVE-2025-55000 published?

CVE-2025-55000 was published on 2025-08-09 and last updated on 2026-06-17.

CVE-2025-55000

CVE-2025-55000 is a medium-severity vulnerability in Openbao 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-156.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-24034
Weakness: CWE-156
Affected product: Openbao
Published: 2025-08-09
Last modified: 2026-06-17

Description

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 0.1.0 through 2.3.1, OpenBao's TOTP secrets engine could accept valid codes multiple times rather than strictly-once. This was caused by unexpected normalization in the underlying TOTP library. To work around, ensure that all codes are first normalized before submitting to the OpenBao endpoint. TOTP code verification is a privileged action; only trusted systems should be verifying codes.

Frequently asked questions

What is CVE-2025-55000?: OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 0.1.0 through 2.3.1, OpenBao's TOTP secrets engine could accept valid codes multiple times rather than strictly-once. This was caused by unexpected normalization in the underlying TOTP library. To work around, ensure that all codes are first normalized before submitting to the OpenBao endpoint. TOTP code verification is a privileged action; only trusted systems should be verifying codes.
How severe is CVE-2025-55000?: CVE-2025-55000 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-55000 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-55000?: CVE-2025-55000 affects Openbao. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-55000?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-55000 have an EU (EUVD) identifier?: Yes. CVE-2025-55000 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-24034.
When was CVE-2025-55000 published?: CVE-2025-55000 was published on 2025-08-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openbao:openbao:*:*:*:*:*:*:*:*

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