How severe is CVE-2026-3277?

CVE-2026-3277 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-2026-3277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3277?

CVE-2026-3277 affects Ironmansoftware Powershell Universal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3277?

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

Does CVE-2026-3277 have an EU (EUVD) identifier?

Yes. CVE-2026-3277 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9030.

When was CVE-2026-3277 published?

CVE-2026-3277 was published on 2026-02-27 and last updated on 2026-06-17.

CVE-2026-3277

CVE-2026-3277 is a medium-severity vulnerability in Ironmansoftware Powershell Universal 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-312.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9030
Weakness: CWE-312
Affected product: Ironmansoftware Powershell Universal
Published: 2026-02-27
Last modified: 2026-06-17

Description

The OpenID Connect (OIDC) authentication configuration in PowerShell Universal before 2026.1.3 stores the OIDC client secret in cleartext in the .universal/authentication.ps1 script, which allows an attacker with read access to that file to obtain the OIDC client credentials

Frequently asked questions

What is CVE-2026-3277?: The OpenID Connect (OIDC) authentication configuration in PowerShell Universal before 2026.1.3 stores the OIDC client secret in cleartext in the .universal/authentication.ps1 script, which allows an attacker with read access to that file to obtain the OIDC client credentials
How severe is CVE-2026-3277?: CVE-2026-3277 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-2026-3277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3277?: CVE-2026-3277 affects Ironmansoftware Powershell Universal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3277?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3277 have an EU (EUVD) identifier?: Yes. CVE-2026-3277 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9030.
When was CVE-2026-3277 published?: CVE-2026-3277 was published on 2026-02-27 and last updated on 2026-06-17.

References

https://devolutions.net/security/advisories/DEVO-2026-0006

Affected products (1)

cpe:2.3:a:ironmansoftware:powershell_universal:*:*:*:*:*:*:*:*

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