CVE-2026-45542
- Source
- https://cve.org/CVERecord?id=CVE-2026-45542
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45542.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45542
- Aliases
-
- GHSA-9r76-858f-v6jh
- Published
- 2026-06-10T00:34:53.238Z
- Modified
- 2026-07-08T08:09:38.437389567Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
- Summary
- ESF-IDF: Heap buffer overflow in protocomm Security2 over Bluetooth
- Details
-
ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.6, 5.3.5, 5.4.4, 5.5.4, and 6.0, a heap buffer overflow exists in the Security Scheme 2 (SRP6a) session-setup path of the protocomm component. The first-phase handler (handlesessioncommand0() in components/protocomm/src/security/security2.c) trusts the length of a client-supplied protobuf field for the SRP6a username and copies it into a buffer whose size is derived from a narrower destination type. The resulting truncation-versus-copy asymmetry corrupts the heap when an oversized value is supplied. This issue has been patched in versions 5.2.7, 5.3.6, 5.4.5, 5.5.5, and 6.0.1.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45542.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-122" ] }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45542.json
- https://github.com/espressif/esp-idf/security/advisories/GHSA-9r76-858f-v6jh
- https://nvd.nist.gov/vuln/detail/CVE-2026-45542
- https://github.com/espressif/esp-idf/commit/0ea58d79845ad674d0358d5de246015a68c4cb4f
- https://github.com/espressif/esp-idf/commit/56c3e385611e63162d0f2f8504ac4ae2ccfccef0
- https://github.com/espressif/esp-idf/commit/71eb2dbe6aaef830719ecac8edf409e2992b64b2
- https://github.com/espressif/esp-idf/commit/9b4cacf9cbc69379972de6a2247fcf5af9240961
- https://github.com/espressif/esp-idf/commit/a2f4554f10ba075c98cbc67464db096ba32497cf
- https://github.com/espressif/esp-idf/commit/f5d24a7e919bc5f447091479656b86da6762a103
Affected packages
Git / github.com/espressif/esp-idf
Affected ranges
- Type
- GIT
- Repo
- https://github.com/espressif/esp-idf
- Events
-
IntroducedFixedFixedFixedFixedFixedFixed
- Database specific
{ "source": [ "CPE_STRING", "REFERENCES" ], "cpe": [ "cpe:2.3:a:espressif:esp-idf:5.2.6:*:*:*:*:*:*:*", "cpe:2.3:a:espressif:esp-idf:5.3.5:*:*:*:*:*:*:*", "cpe:2.3:a:espressif:esp-idf:5.4.4:*:*:*:*:*:*:*", "cpe:2.3:a:espressif:esp-idf:5.5.4:*:*:*:*:*:*:*", "cpe:2.3:a:espressif:esp-idf:6.0:*:*:*:*:*:*:*" ], "extracted_events": [ { "introduced": "5.2.6" }, { "last_affected": "5.2.6" }, { "introduced": "5.3.5" }, { "last_affected": "5.3.5" }, { "introduced": "5.4.4" }, { "last_affected": "5.4.4" }, { "introduced": "5.5.4" }, { "last_affected": "5.5.4" }, { "introduced": "6.0" }, { "last_affected": "6.0" } ] }