CVE-2026-85454

MOOS core-moos through 10.4.0 contains a buffer overflow vulnerability in CMOOSSerialPort::GetTelegram() that writes a NUL terminator one byte past the serial telegram stack buffer. Attackers controlling the serial line can send a full-length telegram to trigger the off-by-one write, corrupting the stack and potentially enabling code execution.

CVSS 4.0

5.2CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

6.1CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-25)

CWE

CWE-193

Published

2026-09-03

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• themoos:core-moos

References

• https://github.com/themoos/core-moos
• https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/Utils/MOOSSerialPort.cpp#L595
• https://github.com/themoos/core-moos/commit/befb04df2039d0080715ea35f56268092db4ec0f
• https://github.com/themoos/core-moos/pull/73
• https://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-off-by-one-buffer-overflow-in-serial-telegram-handling

Check your stackJSON