CVE-2026-23749
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Summary
Golioth Firmware SDK version 0.19.1 prior to 0.22.0, fixed in commit 0e788217, contain an out-of-bounds read due to improper null termination of a blockwise transfer path. blockwise_transfer_init() accepts a path whose length equals CONFIG_GOLIOTH_COAP_MAX_PATH_LEN and copies it using strncpy() without guaranteeing a trailing NUL byte, leaving ctx->path unterminated. A later strlen() on this buffer (in golioth_coap_client_get_internal()) can read past the end of the allocation, resulting in a crash/denial of service. The input is application-controlled (not network by default).
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Golioth | Firmware SDK | 0.19.1 < 0.22.0 | affected |
| Golioth | Firmware SDK | 0e788217ab4b61a7c1d9fadd1b4a40f5f538a26d | unaffected |
Weaknesses
- CWE-170: CWE-170: Improper Null Termination
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://secmate.dev/disclosures/SECMATE-2025-0017
- https://blog.secmate.dev/posts/golioth-vulnerabilities-disclosure/
- https://github.com/golioth/golioth-firmware-sdk/releases/tag/v0.22.0
- https://github.com/golioth/golioth-firmware-sdk/commit/0e788217ab4b61a7c1d9fadd1b4a40f5f538a26d
- https://www.vulncheck.com/advisories/golioth-firmware-sdk-blockwise-transfer-path-out-of-bounds-read
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.