CVE-2026-23749 (GCVE-0-2026-23749)

Vulnerability from cvelistv5 – Published: 2026-02-26 17:32 – Updated: 2026-07-14 15:53
VLAI
Title
Golioth Firmware SDK < 0.22.0 Blockwise Transfer Path Out-of-Bounds Read
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).
Severity
2.1 (Low)
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
2.9 (Low)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-27 17:55 UTC
CWE
  • CWE-170 - Improper Null Termination
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6373 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Golioth Firmware SDK Affected: 0.19.1 , < 0.22.0 (semver)
Unaffected: 0e788217ab4b61a7c1d9fadd1b4a40f5f538a26d (git)
guessed Create a notification for this product.
Credits
SecMate (https://secmate.dev)
Show details on NVD website
To clipboard 

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              "url": "https://www.vulncheck.com/advisories/golioth-firmware-sdk-blockwise-transfer-path-out-of-bounds-read"
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "title": "Golioth Firmware SDK \u003c 0.22.0 Blockwise Transfer Path Out-of-Bounds Read",
          "x_generator": {
            "engine": "Vulnogram 0.5.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "assignerShortName": "VulnCheck",
        "cveId": "CVE-2026-23749",
        "datePublished": "2026-02-26T17:32:30.795Z",
        "dateReserved": "2026-01-15T18:42:20.938Z",
        "dateUpdated": "2026-07-14T15:53:37.722Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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