Two potential signed to unsigned conversion errors and buffer overflow vulnerabilities at the following locations in the Zephyr IPM drivers.
CVE-2023-5184
HIGHNVD 8.87.0▼
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.0 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 50% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 7.0(medium)
- EPSS
- 31.2%
- KEV
- Not listed
Published
September 27, 2023
Last Modified
June 17, 2026
References (8)
- vulnerabilities@zephyrprojecthttp://packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html
- vulnerabilities@zephyrprojecthttp://seclists.org/fulldisclosure/2023/Nov/1
- vulnerabilities@zephyrprojecthttp://www.openwall.com/lists/oss-security/2023/11/07/1
- vulnerabilities@zephyrprojecthttps://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8x3p-q3r5-xh9g
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/175657/Zephyr-RTOS-3.x.0-Buffer-Overflows.html
- af854a3a-2127-422b-91ae-364da2661108http://seclists.org/fulldisclosure/2023/Nov/1
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/11/07/1
- af854a3a-2127-422b-91ae-364da2661108https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8x3p-q3r5-xh9g
Frequently asked(5)
What is CVE-2023-5184?
CVE-2023-5184 is a high vulnerability published on September 27, 2023. Two potential signed to unsigned conversion errors and buffer overflow vulnerabilities at the following locations in the Zephyr IPM drivers.
When was CVE-2023-5184 disclosed?
CVE-2023-5184 was first published in the National Vulnerability Database on September 27, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-5184 actively exploited?
CVE-2023-5184 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 31.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-5184?
CVE-2023-5184 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.0.
How do I remediate CVE-2023-5184?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5184, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-5184
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