CVE-2026-85454

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 v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85454?
CVE-2026-85454 is a medium-severity vulnerability, classified under Off-by-one Error. CVSS score: 6.1/10. Published 2026-09-03.
How severe is CVE-2026-85454?
Medium severity. CVSS v3 base score is 6.1 out of 10.