How severe is CVE-2026-3266?

CVE-2026-3266 has a CVSS 3.x base score of 9.8, 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 high.

Is CVE-2026-3266 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3266?

CVE-2026-3266 affects Opentext Filr. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3266?

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-2026-3266 have an EU (EUVD) identifier?

Yes. CVE-2026-3266 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9348.

When was CVE-2026-3266 published?

CVE-2026-3266 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2026-3266

CVE-2026-3266 is a critical-severity vulnerability in Opentext Filr with a CVSS 3.x base score of 9.8. 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-862.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 8.3
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9348
Weakness: CWE-862
Affected product: Opentext Filr
Published: 2026-03-03
Last modified: 2026-06-17

Description

Missing Authorization vulnerability in OpenText™ Filr allows Authentication Bypass. The vulnerability could allow unauthenticated users to get XSRF token and do RPC with carefully crafted programs. This issue affects Filr: through 25.1.2.

Frequently asked questions

What is CVE-2026-3266?: Missing Authorization vulnerability in OpenText™ Filr allows Authentication Bypass. The vulnerability could allow unauthenticated users to get XSRF token and do RPC with carefully crafted programs. This issue affects Filr: through 25.1.2.
How severe is CVE-2026-3266?: CVE-2026-3266 has a CVSS 3.x base score of 9.8, 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 high.
Is CVE-2026-3266 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3266?: CVE-2026-3266 affects Opentext Filr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3266?: 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-2026-3266 have an EU (EUVD) identifier?: Yes. CVE-2026-3266 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9348.
When was CVE-2026-3266 published?: CVE-2026-3266 was published on 2026-03-03 and last updated on 2026-06-17.

References

https://portal.microfocus.com/s/article/KM000045579?language=en_US

Affected products (1)

cpe:2.3:a:opentext:filr:*:*:*:*:*:*:*:*

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