CVE-2026-54412
- Source
- https://cve.org/CVERecord?id=CVE-2026-54412
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54412.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-54412
- Published
- 2026-06-14T17:26:36Z
- Modified
- 2026-11-07T02:48:35Z
- Severity
-
- 7.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/AU:Y/V:D CVSS Calculator
- Summary
- MQTT-C Heap Out-of-Bounds Read and Integer Underflow in mqtt_unpack_publish_response()
- Details
-
LiamBindle MQTT-C versions prior to 1.1.7 contain a heap-based out-of-bounds read and integer underflow in the mqtt_unpack_publish_response() function in src/mqtt.c. A remote unauthenticated attacker controlling an MQTT broker, or capable of injecting MQTT traffic into an unencrypted session, can crash a subscribed MQTT-C client and potentially disclose adjacent heap memory by sending a single crafted PUBLISH packet.
- Database specific
{ "cna_assigner": "TuranSec", "cwe_ids": [ "CWE-125", "CWE-191" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54412.json" }- References
-
- https://github.com/LiamBindle/MQTT-C/blob/v1.1.6/src/mqtt.c#L1334
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54412.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-54412
- https://github.com/LiamBindle/MQTT-C/pull/208
- https://github.com/LiamBindle/MQTT-C/releases/tag/v1.1.7
- https://github.com/LiamBindle/MQTT-C
- https://cwe.mitre.org/data/definitions/125.html
- https://cwe.mitre.org/data/definitions/191.html
Affected packages
Git / github.com/liambindle/mqtt-c
Affected ranges
- Type
- GIT
- Repo
- https://github.com/liambindle/mqtt-c
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "1.1.7" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "original_tag": "v1.1.7", "range": [ { "fixed": "102e59c14dd0e01770b357a462bd462c83de62e2" } ], "source": "REFERENCES_TAG" }, { "range": [ { "introduced": "0" }, { "fixed": "1.1.7" } ], "source": "DESCRIPTION" } ] }