How severe is CVE-2025-15517?

CVE-2025-15517 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-15517 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15517?

CVE-2025-15517 primarily affects Tp-link Archer Nx600 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-15517?

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-2025-15517 have an EU (EUVD) identifier?

Yes. CVE-2025-15517 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208937.

When was CVE-2025-15517 published?

CVE-2025-15517 was published on 2026-03-23 and last updated on 2026-06-17.

CVE-2025-15517

CVE-2025-15517 is a high-severity vulnerability in Tp-link Archer Nx600 Firmware 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-306.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v4: 8.6
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208937
Weakness: CWE-306
Affected product: Tp-link Archer Nx600 Firmware
Published: 2026-03-23
Last modified: 2026-06-17

Description

A missing authentication check in the HTTP server on TP-Link Archer NX200, NX210, NX500 and NX600 to certain cgi endpoints allows unauthenticated access intended for authenticated users. An attacker may perform privileged HTTP actions without authentication, including firmware upload and configuration operations.

Frequently asked questions

What is CVE-2025-15517?: A missing authentication check in the HTTP server on TP-Link Archer NX200, NX210, NX500 and NX600 to certain cgi endpoints allows unauthenticated access intended for authenticated users. An attacker may perform privileged HTTP actions without authentication, including firmware upload and configuration operations.
How severe is CVE-2025-15517?: CVE-2025-15517 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-15517 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15517?: CVE-2025-15517 primarily affects Tp-link Archer Nx600 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-15517?: 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-2025-15517 have an EU (EUVD) identifier?: Yes. CVE-2025-15517 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208937.
When was CVE-2025-15517 published?: CVE-2025-15517 was published on 2026-03-23 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:o:tp-link:archer_nx600_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:archer_nx500_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:archer_nx210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:archer_nx200_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Tp-link Archer Nx600 Firmware

CVE-2025-15605 — High (CVSS 7.3): A hardcoded cryptographic key within the configuration mechanism on TP-Link Archer NX200, NX210, NX500 and NX600…
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