How severe is CVE-2025-3871?

CVE-2025-3871 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-3871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-3871?

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

Does CVE-2025-3871 have an EU (EUVD) identifier?

Yes. CVE-2025-3871 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21703.

When was CVE-2025-3871 published?

CVE-2025-3871 was published on 2025-07-16 and last updated on 2026-06-17.

CVE-2025-3871

CVE-2025-3871 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21703
Weakness: CWE-862
Published: 2025-07-16
Last modified: 2026-06-17

Description

Broken access control in Fortra's GoAnywhere MFT prior to 7.8.1 allows an attacker to create a denial of service situation when configured to use GoAnywhere One-Time Password (GOTP) email two-factor authentication (2FA) and the user has not set an email address. In this scenario, the attacker may enter the email address of a known user when prompted and the user will be disabled if that user has configured GOTP.

Frequently asked questions

What is CVE-2025-3871?: Broken access control in Fortra's GoAnywhere MFT prior to 7.8.1 allows an attacker to create a denial of service situation when configured to use GoAnywhere One-Time Password (GOTP) email two-factor authentication (2FA) and the user has not set an email address. In this scenario, the attacker may enter the email address of a known user when prompted and the user will be disabled if that user has configured GOTP.
How severe is CVE-2025-3871?: CVE-2025-3871 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-3871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-3871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-3871 have an EU (EUVD) identifier?: Yes. CVE-2025-3871 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21703.
When was CVE-2025-3871 published?: CVE-2025-3871 was published on 2025-07-16 and last updated on 2026-06-17.

References

https://www.fortra.com/security/advisories/product-security/FI-2025-009

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