An Authentication Bypass by Spoofing issue was discovered in LAVA Ether-Serial Link (ESL) running firmware versions 6.01.00/29.03.2007 and…

published 2017-10-11 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-5518

cvss: 9.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.6%; EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits: 0; none known

An Authentication Bypass by Spoofing issue was discovered in LAVA Ether-Serial Link (ESL) running firmware versions 6.01.00/29.03.2007 and prior versions. An improper authentication vulnerability has been identified, which, if exploited, would allow an attacker with the same IP address to bypass authentication by accessing a specific uniform resource locator.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-17-283-01 updated 2017-10-10 cvss 8.1

LAVA Computer MFG Inc. Ether-Serial Link

LAVA Computer MFG Inc All ESLs running firmware <= 6.01.00/29.03.2007
affected: mitigation “LAVA Computer MFG Inc. has not responded to requests to work with NCCIC/ICS-CERT to mitigate this vulnerability.”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.60% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

n/a LAVA Computer MFG Inc. Ether-Serial Link

Classification

Weakness

CWE-290 Authentication Bypass by Spoofing
CWE-287 Improper Authentication

References

ics-cert.us-cert.gov /advisories/ICSA-17-283-01
mitigation, third-party-advisory, us-government-resource
securityfocus.com /bid/101226
vdb-entry, third-party-advisory

Sources

CVE List CVE-2017-14003
NVD CVE-2017-14003

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary