Insufficiently Protected Credentials in PTC's Kepware KEPServerEX

published 2024-01-10 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-33016

cvss: 5.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits: 0; none known

An insufficiently protected credentials vulnerability in KEPServerEX could allow an adversary to capture user credentials as the web server uses basic authentication.

Vendor advisories

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

cisa ICSA-23-243-03 updated 2023-10-12 cvss 5.7

PTC Kepware KepServerEX (Update A)

PTC Kepware KepServerEX <=6.14.263.0 PTC ThingWorx Industrial Connectivity >=8.0, =<8.5 PTC ThingWorx Kepware Server <=6.14.263.0
affected: mitigation “PTC is aware of these vulnerabilities and is developing patches to address them. PTC expects these issues to be addressed by November 2023. This advisory will be updated when these patches are ready.” ptc.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

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-01-11)

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.7	CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD	3.1	5.3	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

PTC Kepware KEPServerEX
PTC ThingWorx Kepware Server
PTC ThingWorx Industrial Connectivity

Classification

Weakness

CWE-522 Insufficiently Protected Credentials

References

ptc.com /en/support/article/cs399528
vendor-advisory
cisa.gov /news-events/ics-advisories/icsa-23-243-03
government-resource, third-party-advisory, us-government-resource
dragos.com /advisory/ptcs-kepserverex-vulnerabilities/
third-party-advisory

Sources

CVE List CVE-2023-29447
NVD CVE-2023-29447

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