How severe is CVE-2025-49599?

CVE-2025-49599 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-49599 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-49599?

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

Does CVE-2025-49599 have an EU (EUVD) identifier?

Yes. CVE-2025-49599 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17329.

When was CVE-2025-49599 published?

CVE-2025-49599 was published on 2025-06-06 and last updated on 2026-06-17.

CVE-2025-49599

CVE-2025-49599 is a medium-severity vulnerability with a CVSS 3.x base score of 4.1. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.1)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17329
Weakness: CWE-863
Published: 2025-06-06
Last modified: 2026-06-17

Description

Huawei EG8141A5 devices through V5R019C00S100, EG8145V5 devices through V5R019C00S100, and EG8145V5-V2 devices through V5R021C00S184 allow the Epuser account to disable ONT firewall functionality, e.g., to remove the default blocking of the SSH and TELNET TCP ports, aka HWNO-56Q3.

Frequently asked questions

What is CVE-2025-49599?: Huawei EG8141A5 devices through V5R019C00S100, EG8145V5 devices through V5R019C00S100, and EG8145V5-V2 devices through V5R021C00S184 allow the Epuser account to disable ONT firewall functionality, e.g., to remove the default blocking of the SSH and TELNET TCP ports, aka HWNO-56Q3.
How severe is CVE-2025-49599?: CVE-2025-49599 has a CVSS 3.x base score of 4.1, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-49599 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-49599?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-49599 have an EU (EUVD) identifier?: Yes. CVE-2025-49599 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17329.
When was CVE-2025-49599 published?: CVE-2025-49599 was published on 2025-06-06 and last updated on 2026-06-17.

References

https://www.youtube.com/watch?v=l1eYpcNvZdQ

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