CVE-2025-6752HIGH 8.8EPSS p55.9%

CVE-2025-6752CVE-2025-6752

Description

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.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.93% probability of exploitation · percentile 55.9% · 2026-06-19T12:03:05Z
Published2025-06-27
Last modified2026-04-15

Underlying weaknesses· 2

CWE-119CWE-121

References

  1. https://github.com/feiwuxingxie/cve/blob/main/linksys/vul01/1.md
  2. https://github.com/feiwuxingxie/cve/blob/main/linksys/vul01/1.md#poc
  3. https://vuldb.com/?ctiid.314050
  4. https://vuldb.com/?id.314050
  5. https://vuldb.com/?submit.600638
  6. https://www.linksys.com/

2

TypeTargetConfidenceTier
WeaknessImproper Restriction of Operations within the Bounds of a Memory Buffercwe-1190%live
WeaknessStack-based Buffer Overflowcwe-1210%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.