Vulnerability Description
Golioth Pouch version 0.1.0, prior to commit 1b2219a1, contains a heap-based buffer overflow in BLE GATT server certificate handling. server_cert_write() allocates a heap buffer of size CONFIG_POUCH_SERVER_CERT_MAX_LEN when receiving the first fragment, then appends subsequent fragments using memcpy() without verifying that sufficient capacity remains. An adjacent BLE client can send unauthenticated fragments whose combined size exceeds the allocated buffer, causing a heap overflow and crash; integrity impact is also possible due to memory corruption.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://blog.secmate.dev/posts/golioth-vulnerabilities-disclosure/
- https://github.com/golioth/pouch/commit/1b2219a1
- https://secmate.dev/disclosures/SECMATE-2025-0018
- https://www.vulncheck.com/advisories/golioth-pouch-ble-gatt-heap-based-buffer-ov
FAQ
What is CVE-2026-23750?
CVE-2026-23750 is a vulnerability with a CVSS score of 8.1 (HIGH). Golioth Pouch version 0.1.0, prior to commit 1b2219a1, contains a heap-based buffer overflow in BLE GATT server certificate handling. server_cert_write() allocates a heap buffer of size CONFIG_POUCH_S...
How severe is CVE-2026-23750?
CVE-2026-23750 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23750?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.