Linksys
Not on CISA's list of exploited flaws, and not in the news we track.
CVE-2026-127277Critical9.3
Reading the vendor advisory
Black Shard's team can check your exposure to CVE-2026-127277 and take the fix off your plate.
A security flaw has been discovered in Linksys EA8100 1.0.3.216940. The affected element is an unknown function of the file etc/init.d/service_smbd.sh of the component SMB Service. Performing a manipulation of the argument ANON_ACCESS results in improper initialization. The attack can be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Black Shard's team can check your exposure, take a fix off your plate or step in on a live incident.
Severity
9.3of 10, critical
Updated 13 Nov 2026, 12:42 UTC, 33 of 36 sources answering.
CISA Known Exploited Vulnerabilities, NVD, CVE.org, CIRCL Vulnerability-Lookup, GitHub Advisory Database (CC BY 4.0), OSV (CC BY 4.0), RansomLook (CC BY 4.0, enriched by Black Shard), SEC EDGAR, HHS breach portal, Have I Been Pwned (CC BY 4.0), Texas Attorney General, California Attorney General, Delaware Department of Justice, Vermont Attorney General, GDELT Project, Cloudflare status, abuse.ch SSLBL (CC0), CISA ICS advisories, NCSC UK (OGL v3.0), CERT-EU (CC BY 4.0), NCSC New Zealand (CC BY 4.0), MISP galaxy (CC0), OAIC determinations (CC BY 4.0), abuse.ch Feodo Tracker (CC0), Spamhaus DROP (Spamhaus DROP terms), blocklist.de, CINS Army, CERT-FR (Licence Ouverte 2.0), Red Hat Security Data (CC BY 4.0), ENISA EUVD, Microsoft MSRC, JVN iPedia, FIRST EPSS, IODA, GeoNames (CC BY 4.0), Natural Earth, Wikidata, Regional Internet Registries (delegation statistics), Protomaps, OpenStreetMap contributors (ODbL), NASA GIBS. Items link to their sources, except leak-site claims, which are never linked. This product uses the NVD API but is not endorsed or certified by the NVD.
Built on open-source software under the MIT licence. Map data from Natural Earth, NASA GIBS, Protomaps and OpenStreetMap contributors.
© 2026 Black Shard Pty LtdABN 66 696 910 773