What is GHSA-whc8-rqfv-v7r9?

GHSA-whc8-rqfv-v7r9 is a security advisory published by GitHub Security Advisories with Medium severity. A stack-based buffer overflow vulnerability exists in the cmd_edl function of OreSat Firmware v1...

Which CVE IDs does GHSA-whc8-rqfv-v7r9 cover?

GHSA-whc8-rqfv-v7r9 covers the following CVE IDs: CVE-2026-67673. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-whc8-rqfv-v7r9?

GHSA-whc8-rqfv-v7r9 has a CVSS v3 base score of 4.6, published by GitHub Security Advisories.

GHSA-whc8-rqfv-v7r9MediumCVSS 4.6

A stack-based buffer overflow vulnerability exists in the cmd_edl function of OreSat Firmware v1...

Vendor

GitHub Security Advisories

Published

August 4, 2026

Last Modified

August 5, 2026

🔗 CVE IDs covered (1)

CVE-2026-67673 →

📋 Description

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 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,

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-67673
https://github.com/dazuo233/cve/issues/2
https://github.com/advisories/GHSA-whc8-rqfv-v7r9