Buffer overflow in Linksys E1700
CVE-2026-108893
A vulnerability was identified in Linksys E1700 up to 1.0.0.4.003. This issue affects the function setVlan of the file /goform/setVlan. Such manipulation of the argument vlan_set leads to stack-based buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Linksys E1700 — versions 1.0.0.4.003
Weakness classification (CWE)
References
- vuldb.com/vuln/416685 (technical-description, vdb-entry)
- vuldb.com/vuln/416685/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-108893 (third-party-advisory)
- vuldb.com/submit/973112 (third-party-advisory)
- github.com/wudipjq/my_vuln/blob/main/Linksys3/vuln_67/67.md (exploit)
- www.linksys.com/ (product)
Frequently asked questions
- What is CVE-2026-108893?
- CVE-2026-108893 is a critical-severity vulnerability in Linksys E1700, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.9/10. Published 2026-10-12.
- How severe is CVE-2026-108893?
- Critical severity. CVSS v3 base score is 9.9 out of 10.