Buffer overflow in Linksys Ea7200
CVE-2025-6752
A vulnerability has been found in Linksys WRT1900ACS, EA7200, EA7450 and EA7500 up to 20250619 and classified as critical. This vulnerability affects the function SetDefaultConnectionService of the file /upnp/control/Layer3Forwarding of the component IGD. The manipulation of the argument NewDefaultConnectionService leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.011 · change: +0.002
Affected products
- Linksys Ea7200 — versions 20250619
- Linksys Ea7450 — versions 20250619
- Linksys Ea7500 — versions 20250619
- Linksys Wrt1900acs — versions 20250619
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/feiwuxingxie/cve/blob/main/linksys/vul01/1.md (related)
- github.com/feiwuxingxie/cve/blob/main/linksys/vul01/1.md (exploit)
- www.linksys.com/ (product)
Frequently asked questions
- What is CVE-2025-6752?
- CVE-2025-6752 is a high-severity vulnerability in Linksys Ea7200, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2025-06-27.
- How severe is CVE-2025-6752?
- High severity. CVSS v3 base score is 8.8 out of 10.