TI-2017-07314 Aliases CVE-2017-9947 GHSA-m28r-jg2j-26cv

Path traversal in APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5

MEDIUM 63CWE-538Published 2017-10-23 · Updated 2026-06-02

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

A vulnerability has been identified in Siemens APOGEE PXC and TALON TC BACnet Automation Controllers in all versions <V3.5. A directory traversal vulnerability could allow a remote attacker with network access to the integrated web server (80/tcp and 443/tcp) to obtain information on the structure of the file system of the affected devices.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.08194 94th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5	APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5	—	No fix listed	CNA

APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5 Vendor— Affected APOGEE PXC and TALON TC BACnet Automation Controllers All versions <V3.5 Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPE	Versions	Role	Vendor
cpe:2.3:o:siemens:apogee_pxc_firmware::::::::	before 3.5	Vulnerable	Siemens
cpe:2.3:h:siemens:apogee_pxc:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:apogee_pxc_modular_firmware::::::::	before 3.5	Vulnerable	Siemens
cpe:2.3:h:siemens:apogee_pxc_modular:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:talon_tc_compact_firmware::::::::	before 3.5	Vulnerable	Siemens
cpe:2.3:h:siemens:talon_tc_compact:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:talon_tc_modular_firmware::::::::	before 3.5	Vulnerable	Siemens
cpe:2.3:h:siemens:talon_tc_modular:-:::::::*	not specified by NVD	Running on	Siemens

cpe:2.3:o:siemens:apogee_pxc_firmware:*:*:*:*:*:*:*:* Versions before 3.5 Vulnerable ·Siemens
cpe:2.3:h:siemens:apogee_pxc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:apogee_pxc_modular_firmware:*:*:*:*:*:*:*:* Versions before 3.5 Vulnerable ·Siemens
cpe:2.3:h:siemens:apogee_pxc_modular:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:talon_tc_compact_firmware:*:*:*:*:*:*:*:* Versions before 3.5 Vulnerable ·Siemens
cpe:2.3:h:siemens:talon_tc_compact:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:talon_tc_modular_firmware:*:*:*:*:*:*:*:* Versions before 3.5 Vulnerable ·Siemens
cpe:2.3:h:siemens:talon_tc_modular:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2017-9947
2026-10-03 Alias added: GHSA-m28r-jg2j-26cv

References

Exploit 1

http://packetstormsecurity.com/files/169544/Siemens-APOGEE-PXC-TALON-TC-Authentication-Bypass.html

Advisory 2

TI-2017-07313 Improper authentication in APOGEE PXC and TALON TC BACnet Automation Controllers All… CVSS 3.1HIGH 7.5
TI-2019-10392 Improper input validation in Siemens APOGEE MEC/MBC/PXC CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences