How severe is CVE-2025-71056?

CVE-2025-71056 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-71056 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-71056?

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

Does CVE-2025-71056 have an EU (EUVD) identifier?

Yes. CVE-2025-71056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207619.

When was CVE-2025-71056 published?

CVE-2025-71056 was published on 2026-02-23 and last updated on 2026-07-05.

CVE-2025-71056

CVE-2025-71056 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. 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-290.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207619
Weakness: CWE-290
Published: 2026-02-23
Last modified: 2026-07-05

Description

Improper session management in GCOM EPON 1GE ONU version C00R371V00B01 allows attackers to execute a session hijacking attack via spoofing the IP address of an authenticated user.

Frequently asked questions

What is CVE-2025-71056?: Improper session management in GCOM EPON 1GE ONU version C00R371V00B01 allows attackers to execute a session hijacking attack via spoofing the IP address of an authenticated user.
How severe is CVE-2025-71056?: CVE-2025-71056 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-71056 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-71056?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-71056 have an EU (EUVD) identifier?: Yes. CVE-2025-71056 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207619.
When was CVE-2025-71056 published?: CVE-2025-71056 was published on 2026-02-23 and last updated on 2026-07-05.

References

EU advisories (EUVD)

http://www.szgcom.com

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