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CVE-2021-27391

CVE.org · Published

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Record status
Published
Identifier year (not publication year)
2021
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

A vulnerability has been identified in APOGEE MBC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE MEC (PPC) (P2 Ethernet) (All versions >= V2.6.3), APOGEE PXC Compact (BACnet) (All versions < V3.5.3), APOGEE PXC Compact (P2 Ethernet) (All versions >= V2.8), APOGEE PXC Modular (BACnet) (All versions < V3.5.3), APOGEE PXC Modular (P2 Ethernet) (All versions >= V2.8), TALON TC Compact (BACnet) (All versions < V3.5.3), TALON TC Modular (BACnet) (All versions < V3.5.3). The web server of affected devices lacks proper bounds checking when parsing the Host parameter in HTTP requests, which could lead to a buffer overflow. An unauthenticated remote attacker could exploit this vulnerability to execute arbitrary code on the device with root privileges.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

APOGEE MBC (PPC) (P2 Ethernet)

Vendor
Siemens
Product
APOGEE MBC (PPC) (P2 Ethernet)
Platforms
Unknown
Default status
Unknown
APOGEE MBC (PPC) (P2 Ethernet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V2.6.3affectedUnavailableUnavailableUnavailableNone listed

APOGEE MEC (PPC) (P2 Ethernet)

Vendor
Siemens
Product
APOGEE MEC (PPC) (P2 Ethernet)
Platforms
Unknown
Default status
Unknown
APOGEE MEC (PPC) (P2 Ethernet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V2.6.3affectedUnavailableUnavailableUnavailableNone listed

APOGEE PXC Compact (BACnet)

Vendor
Siemens
Product
APOGEE PXC Compact (BACnet)
Platforms
Unknown
Default status
Unknown
APOGEE PXC Compact (BACnet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V3.5.3affectedUnavailableUnavailableUnavailableNone listed

APOGEE PXC Compact (P2 Ethernet)

Vendor
Siemens
Product
APOGEE PXC Compact (P2 Ethernet)
Platforms
Unknown
Default status
Unknown
APOGEE PXC Compact (P2 Ethernet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V2.8affectedUnavailableUnavailableUnavailableNone listed

APOGEE PXC Modular (BACnet)

Vendor
Siemens
Product
APOGEE PXC Modular (BACnet)
Platforms
Unknown
Default status
Unknown
APOGEE PXC Modular (BACnet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V3.5.3affectedUnavailableUnavailableUnavailableNone listed

APOGEE PXC Modular (P2 Ethernet)

Vendor
Siemens
Product
APOGEE PXC Modular (P2 Ethernet)
Platforms
Unknown
Default status
Unknown
APOGEE PXC Modular (P2 Ethernet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions >= V2.8affectedUnavailableUnavailableUnavailableNone listed

TALON TC Compact (BACnet)

Vendor
Siemens
Product
TALON TC Compact (BACnet)
Platforms
Unknown
Default status
Unknown
TALON TC Compact (BACnet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V3.5.3affectedUnavailableUnavailableUnavailableNone listed

TALON TC Modular (BACnet)

Vendor
Siemens
Product
TALON TC Modular (BACnet)
Platforms
Unknown
Default status
Unknown
TALON TC Modular (BACnet) · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
All versions < V3.5.3affectedUnavailableUnavailableUnavailableNone listed