How severe is CVE-2023-29446?

CVE-2023-29446 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2023-29446 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-29446?

CVE-2023-29446 primarily affects Ptc Kepware Kepserverex. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-29446?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-29446 have an EU (EUVD) identifier?

Yes. CVE-2023-29446 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-33015.

When was CVE-2023-29446 published?

CVE-2023-29446 was published on 2024-01-10 and last updated on 2026-06-17.

CVE-2023-29446

CVE-2023-29446 is a medium-severity vulnerability in Ptc Kepware Kepserverex with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-33015
Weakness: CWE-20
Affected product: Ptc Kepware Kepserverex
Published: 2024-01-10
Last modified: 2026-06-17

Description

An improper input validation vulnerability has been discovered that could allow an adversary to inject a UNC path via a malicious project file. This allows an adversary to capture NLTMv2 hashes and potentially crack them offline.

Frequently asked questions

What is CVE-2023-29446?: An improper input validation vulnerability has been discovered that could allow an adversary to inject a UNC path via a malicious project file. This allows an adversary to capture NLTMv2 hashes and potentially crack them offline.
How severe is CVE-2023-29446?: CVE-2023-29446 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2023-29446 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-29446?: CVE-2023-29446 primarily affects Ptc Kepware Kepserverex. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-29446?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-29446 have an EU (EUVD) identifier?: Yes. CVE-2023-29446 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-33015.
When was CVE-2023-29446 published?: CVE-2023-29446 was published on 2024-01-10 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:ptc:kepware_kepserverex:*:*:*:*:*:*:*:*
cpe:2.3:a:ptc:thingworx_kepware_server:*:*:*:*:*:*:*:*
cpe:2.3:a:ptc:thingworx_industrial_connectivity:*:*:*:*:*:*:*:*

More vulnerabilities in Ptc Kepware Kepserverex

CVE-2022-2825 — Critical (CVSS 9.8): This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX…
CVE-2020-27265 — Critical (CVSS 9.8): KEPServerEX: v6.0 to v6.9, ThingWorx Kepware Server: v6.8 and v6.9, ThingWorx Industrial Connectivity: All versions,…
CVE-2022-2848 — Critical (CVSS 9.1): This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX…
CVE-2020-27267 — Critical (CVSS 9.1): KEPServerEX v6.0 to v6.9, ThingWorx Kepware Server v6.8 and v6.9, ThingWorx Industrial Connectivity (all versions),…
CVE-2020-27263 — Critical (CVSS 9.1): KEPServerEX: v6.0 to v6.9, ThingWorx Kepware Server: v6.8 and v6.9, ThingWorx Industrial Connectivity: All versions,…
CVE-2023-29445 — High (CVSS 7.8): An uncontrolled search path element vulnerability (DLL hijacking) has been discovered that could allow a locally…

All CVEs affecting Ptc Kepware Kepserverex →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →