CVE-2026-64675 - BACnet Stack: Pre-auth OOB read in xy_color_decode (BACnetXYColor) via WriteGroup/WriteProperty
CVE ID :CVE-2026-64675
Published : Nov. 13, 2026, 7:19 p.m. | 1 hour, 10 minutes ago
Description :BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.5 and 1.5.1, a single unauthenticated BACnet/IP UDP datagram (port 47808) triggers an out-of-bounds read in xy_color_decode() (src/bacnet/lighting.c), reachable pre-authentication through two default-registered service handlers: the UnconfirmedRequest WriteGroup service (0x0A) and Confirmed WriteProperty on a BACnetXYColor-typed property. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0.
Severity: 5.3 | MEDIUM
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Published : Nov. 13, 2026, 7:19 p.m. | 1 hour, 10 minutes ago
Description :BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.5 and 1.5.1, a single unauthenticated BACnet/IP UDP datagram (port 47808) triggers an out-of-bounds read in xy_color_decode() (src/bacnet/lighting.c), reachable pre-authentication through two default-registered service handlers: the UnconfirmedRequest WriteGroup service (0x0A) and Confirmed WriteProperty on a BACnetXYColor-typed property. This issue has been patched in versions 1.4.5, 1.5.1, and 1.6.0.
Severity: 5.3 | MEDIUM
Visit the link for more details, such as CVSS details, affected products, timeline, and more...