Buffer overflow in N/a

CVE-2026-67673

A stack-based buffer overflow vulnerability exists in the cmd_edl function of OreSat Firmware v1.0. The vulnerability is triggered when processing the edl fw_flash command, where the <filename> argument is copied to a 64-byte stack buffer via memcpy without proper length validation. An attacker with physical access to the UART3 serial interface can exploit this vulnerability by sending a maliciously crafted command with an oversized filename parameter,

Vulnerability class: Buffer Overflow

EPSS: 0.002 (4.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-67673?
CVE-2026-67673 is a medium-severity vulnerability in N/a, classified under Stack-based Buffer Overflow. CVSS score: 4.6/10. Published 2026-08-03.
How severe is CVE-2026-67673?
Medium severity. CVSS v3 base score is 4.6 out of 10.