MEDIUMCVSS v3.1 5.3Vulnerability
CVE-2026-64675
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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-11-14T00:40:25.638091+00:00
- Cvss score
- 5.3
- Cvss severity
- MEDIUM
- Retrieved at
- 2026-11-14T00:50:05+00:00
- Score
- 5.3
- Last source
- NVD
- Cvss version
- 3.1
- Cve id
- CVE-2026-64675
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- First seen by Signal
- 2026-11-13T20:38:23+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Published at
- 2026-11-13T19:19:33.463
- Last modified
- 2026-11-13T22:17:25.573
Related Entities (1)
HAS_WEAKNESS (1)
Related research
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