CVE-2023-31921

MEDIUMNVD 5.55.5—

5.5

Jerryscript 3.0 (commit 05dbbd1) was discovered to contain an Assertion Failure via the ecma_big_uint_div_mod at jerry-core/ecma/operations/ecma-big-uint.c.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 30.6%
KEV: Not listed

Published

May 12, 2023

Last Modified

January 24, 2025

References (2)

cve@mitrehttps://github.com/jerryscript-project/jerryscript/issues/5068
af854a3a-2127-422b-91ae-364da2661108https://github.com/jerryscript-project/jerryscript/issues/5068

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-617

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
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2026-05-31 00:15 UTCepss_batch
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2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 01:13 UTCEG score recompute

Frequently asked(5)

What is CVE-2023-31921?

CVE-2023-31921 is a medium vulnerability published on May 12, 2023. Jerryscript 3.0 (commit 05dbbd1) was discovered to contain an Assertion Failure via the ecmabiguintdivmod at jerry-core/ecma/operations/ecma-big-uint.c.

When was CVE-2023-31921 disclosed?

CVE-2023-31921 was first published in the National Vulnerability Database on May 12, 2023, with the most recent update on January 24, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-31921 actively exploited?

CVE-2023-31921 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-31921?

CVE-2023-31921 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2023-31921?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-31921, 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

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CVE-2023-31921

📅 Published

🔄 Last Modified

🔗 References (2)