Is CVE-2023-6249 in the CISA KEV catalog?

No. CVE-2023-6249 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-6249?

CVE-2023-6249 has a CVSS v3 base score of 8.0 (HIGH).

What is the EPSS score for CVE-2023-6249?

CVE-2023-6249 has an EPSS score of 0.44% (35th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-6249?

Upgrade zephyr to 3.5.0 or later.

CVE & CISA-KEV Catalog

CVE-2023-6249

HIGH

8.0

CVSS v3

NVD

Description

Signed to unsigned conversion esp32_ipm_send

CWE-704

How to fix

Remediation Available

zephyrNVD

Affected:< 3.5.0Fixed in:3.5.0CVE-2023-6249derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Exploit Intelligence

0.44%probability of exploitation in 30 days

35thpercentile

Low risk: more likely to be exploited than 35% of all known CVEs.

References

Patch1

github.com

Related Vulnerabilities

Other CWE-704 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-41646	Critical	9.8	41%	-	Fix
CVE-2017-5115	High	8.8	26%	-	Fix
CVE-2018-12453	High	7.5	24%	-	Fix
CVE-2018-3843	High	8.8	24%	-	-
CVE-2017-3106	High	8.8	22%	-	-
CVE-2018-5007	High	8.8	18%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-01-23.