How severe is CVE-2023-3569?

CVE-2023-3569 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-3569 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-3569?

CVE-2023-3569 primarily affects Phoenixcontact Cloud Client 1101t-tx Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-3569?

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

When was CVE-2023-3569 published?

CVE-2023-3569 was published on 2023-08-08 and last updated on 2026-06-17.

CVE-2023-3569

CVE-2023-3569 is a medium-severity vulnerability in Phoenixcontact Cloud Client 1101t-tx Firmware with a CVSS 3.x base score of 4.9. 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-776.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-776
Affected product: Phoenixcontact Cloud Client 1101t-tx Firmware
Published: 2023-08-08
Last modified: 2026-06-17

Description

In PHOENIX CONTACTs TC ROUTER and TC CLOUD CLIENT in versions prior to 2.07.2 as well as CLOUD CLIENT 1101T-TX/TX prior to 2.06.10 an authenticated remote attacker with admin privileges could upload a crafted XML file which causes a denial-of-service.

Frequently asked questions

What is CVE-2023-3569?: In PHOENIX CONTACTs TC ROUTER and TC CLOUD CLIENT in versions prior to 2.07.2 as well as CLOUD CLIENT 1101T-TX/TX prior to 2.06.10 an authenticated remote attacker with admin privileges could upload a crafted XML file which causes a denial-of-service.
How severe is CVE-2023-3569?: CVE-2023-3569 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-3569 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-3569?: CVE-2023-3569 primarily affects Phoenixcontact Cloud Client 1101t-tx Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-3569?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-3569 published?: CVE-2023-3569 was published on 2023-08-08 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:phoenixcontact:cloud_client_1101t-tx_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:tc_cloud_client_1002-4g_att_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:tc_cloud_client_1002-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:tc_cloud_client_1002-4g_vzw_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:tc_router_3002t-4g_att_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:tc_router_3002t-4g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:phoenixcontact:tc_router_3002t-4g_vzw_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Phoenixcontact Cloud Client 1101t-tx Firmware

CVE-2023-3526 — Critical (CVSS 9.6): In PHOENIX CONTACTs TC ROUTER and TC CLOUD CLIENT in versions prior to 2.07.2 as well as CLOUD CLIENT 1101T-TX/TX prior…

All CVEs affecting Phoenixcontact Cloud Client 1101t-tx Firmware →

Other CWE-776 vulnerabilities

CVE-2019-19144 — Critical (CVSS 9.8): XML External Entity Injection vulnerability in Quantum DXi6702 2.3.0.3 (11449-53631 Build304) devices via…
CVE-2022-23640 — Critical (CVSS 9.8): Excel-Streaming-Reader is an easy-to-use implementation of a streaming Excel reader using Apache POI. Prior to…
CVE-2014-2228 — Critical (CVSS 9.8): The XStream extension in HP Fortify SCA before 2.2 RC3 allows remote attackers to execute arbitrary code via unsafe…
CVE-2013-4335 — Critical (CVSS 9.8): opOpenSocialPlugin 0.8.2.1, > 0.9.9.2, 0.9.13, 1.2.6: Multiple XML External Entity Injection Vulnerabilities
CVE-2021-23926 — Critical (CVSS 9.1): The XML parsers used by XMLBeans up to version 2.6.0 did not set the properties needed to protect the user from…
CVE-2020-24590 — Critical (CVSS 9.1): The Management Console in WSO2 API Manager through 3.1.0 and API Microgateway 2.2.0 allows XML Entity Expansion attacks.

Browse all CWE-776 vulnerabilities →