An issue was discovered in Honeywell XL Web II controller XL1000C500 XLWebExe-2-01-00 and prior, and XLWeb 500 XLWebExe-1-02-08 and prior.

published 2017-02-13 9y ago modified 2026-06-17 4mo ago also EUVD-2017-14250

cvss: 6.0; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

An issue was discovered in Honeywell XL Web II controller XL1000C500 XLWebExe-2-01-00 and prior, and XLWeb 500 XLWebExe-1-02-08 and prior. An attacker can establish a new user session, without invalidating any existing session identifier, which gives the opportunity to steal authenticated sessions (SESSION FIXATION).

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Vendor advisories

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

cisa ICSA-17-033-01 updated 2017-02-02 cvss 8.6

Honeywell XL Web II Controller Vulnerabilities

Honeywell XL1000C500 XLWebExe <= 2-01-00 Honeywell XLWeb 500 XLWebExe <= 1-02-08
affected: mitigation “In the Centraline partner channel, Excel Web controllers also have been sold under the brand name “FALCON.” Users can obtain the latest versions by contacting Centraline:” centraline.com

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

1.10% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	6.0	CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:L
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

n/a Honeywell XL Web II Controller

Classification

Weakness

CWE-384 Session Fixation

References

securityfocus.com /bid/95971
vdb-entry, third-party-advisory
ics-cert.us-cert.gov /advisories/ICSA-17-033-01
third-party-advisory, us-government-resource

Sources

CVE List CVE-2017-5141
NVD CVE-2017-5141

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