How severe is CVE-2026-34408?

CVE-2026-34408 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-34408 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-34408?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-34408 have an EU (EUVD) identifier?

Yes. CVE-2026-34408 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27323.

When was CVE-2026-34408 published?

CVE-2026-34408 was published on 2026-05-05 and last updated on 2026-06-17.

CVE-2026-34408

CVE-2026-34408 is a critical-severity vulnerability with a CVSS 3.x base score of 9.1. 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-640.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-27323
Weakness: CWE-640
Published: 2026-05-05
Last modified: 2026-06-17

Description

An issue was discovered in Gambio 4.9.2.0 (patched in 2024-02 v1.0.0 for GX4 v4.0.0.0 to v4.9.2.0). The password reset function can be bypassed to set arbitrary passwords for arbitrary accounts if the ID is known.

Frequently asked questions

What is CVE-2026-34408?: An issue was discovered in Gambio 4.9.2.0 (patched in 2024-02 v1.0.0 for GX4 v4.0.0.0 to v4.9.2.0). The password reset function can be bypassed to set arbitrary passwords for arbitrary accounts if the ID is known.
How severe is CVE-2026-34408?: CVE-2026-34408 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-34408 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-34408?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-34408 have an EU (EUVD) identifier?: Yes. CVE-2026-34408 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-27323.
When was CVE-2026-34408 published?: CVE-2026-34408 was published on 2026-05-05 and last updated on 2026-06-17.

References

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