How severe is CVE-2021-46323?

CVE-2021-46323 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-46323 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46323?

CVE-2021-46323 affects Espruino. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46323?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-46323 published?

CVE-2021-46323 was published on 2022-01-20 and last updated on 2026-06-17.

CVE-2021-46323

CVE-2021-46323 is a medium-severity vulnerability in Espruino with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Espruino
Published: 2022-01-20
Last modified: 2026-06-17

Description

Espruino 2v11.251 was discovered to contain a SEGV vulnerability via src/jsinteractive.c in jsiGetDeviceFromClass.

Frequently asked questions

What is CVE-2021-46323?: Espruino 2v11.251 was discovered to contain a SEGV vulnerability via src/jsinteractive.c in jsiGetDeviceFromClass.
How severe is CVE-2021-46323?: CVE-2021-46323 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-46323 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46323?: CVE-2021-46323 affects Espruino. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46323?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-46323 published?: CVE-2021-46323 was published on 2022-01-20 and last updated on 2026-06-17.

References

https://github.com/espruino/Espruino/issues/2122

Affected products (1)

cpe:2.3:o:espruino:espruino:2.11.251:*:*:*:*:*:*:*

More vulnerabilities in Espruino

CVE-2020-19693 — Critical (CVSS 9.8): An issue found in Espruino Espruino 6ea4c0a allows an attacker to execute arbitrrary code via oldFunc parameter of the…
CVE-2020-22884 — Critical (CVSS 9.8): Buffer overflow vulnerability in function jsvGetStringChars in Espruino before RELEASE_2V09, allows remote attackers to…
CVE-2022-25465 — High (CVSS 7.8): Espruino 2v11 release was discovered to contain a stack buffer overflow via src/jsvar.c in jsvGetNextSibling.
CVE-2022-25044 — High (CVSS 7.8): Espruino 2v11.251 was discovered to contain a stack buffer overflow via src/jsvar.c in jsvNewFromString.
CVE-2021-46325 — High (CVSS 7.8): Espruino 2v10.246 was discovered to contain a stack buffer overflow via src/jsutils.c in vcbprintf.
CVE-2021-46324 — High (CVSS 7.8): Espruino 2v11.251 was discovered to contain a stack buffer overflow via src/jsvar.c in jsvNewFromString.

All CVEs affecting Espruino →