No exploitation reportedFix available

CVE-2025-15517

Q: Is CVE-2025-15517 actively exploited?

Active exploitation of CVE-2025-15517 has not been confirmed. Its EPSS score was 3.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2025-15517?

CVE-2025-15517 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

No exploitation reported by the sources we read.

Published2026-03-23
Fixed in1.8.0 · 1.3.0
WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-03-2318:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2025-15517?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2025-15517?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Tp-link archer nx200 firmwareversion to verify

Branch	Affected	Fixed in	Source
1.8	< 1.8.0	1.8.0	NVD
1.3	< 1.3.0	1.3.0	NVD

Tp-link archer nx500 firmwareversion to verify

Branch	Affected	Fixed in	Source
1.5	< 1.5.0	1.5.0	NVD
1.3	< 1.3.0	1.3.0	NVD

Tp-link archer nx600 firmwareversion to verify

Branch	Affected	Fixed in	Source
1.4	< 1.4.0	1.4.0	NVD
1.3	< 1.3.0	1.3.0	NVD

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Tp-link archer nx200 firmware to 1.8.0 · 1.3.0

Advisories and patches

www.tp-link.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-03-23
OpenCVESSVC decisionnone—
CNACVSS 4.08.6read 2026-10-23
NVDCVSS 3.18.1read 2026-10-23
CNAweakness (CWE)CWE-306read 2026-10-23
FIRST EPSSEPSS score3.1 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 4.0 vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published: 2026-03-23
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2025-15517?

Is CVE-2025-15517 actively exploited?

Active exploitation of CVE-2025-15517 has not been confirmed. Its EPSS score was 3.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-15517?

CVE-2025-15517 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

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