CVE-2022-43281

HIGHNVD 7.87.8—Elevated

7.8

wasm-interp v1.0.29 was discovered to contain a heap overflow via the component std::vector>::size() at /bits/stl_vector.h.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 32.6%
KEV: Not listed

Published

October 28, 2022

Last Modified

May 8, 2025

References (2)

cve@mitrehttps://github.com/WebAssembly/wabt/issues/1981
af854a3a-2127-422b-91ae-364da2661108https://github.com/WebAssembly/wabt/issues/1981

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
wabt	0.1, 0.1.1, 0.1.2	—	—

Weakness Classification(1)

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

CWE-787Out-of-bounds Write

Data Freshness Timeline

(refreshed 11× 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 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
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 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 13:01 UTCEG score recompute

Frequently asked(5)

What is CVE-2022-43281?

CVE-2022-43281 is a high vulnerability published on October 28, 2022. wasm-interp v1.0.29 was discovered to contain a heap overflow via the component std::vector<wabt::Type, std::allocator<wabt::Type>>::size() at /bits/stl_vector.h.

When was CVE-2022-43281 disclosed?

CVE-2022-43281 was first published in the National Vulnerability Database on October 28, 2022, with the most recent update on May 8, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-43281 actively exploited?

CVE-2022-43281 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-43281?

CVE-2022-43281 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2022-43281?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-43281, 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-2022-43281

📅 Published

🔄 Last Modified

🔗 References (2)

Affected Packages

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2022-43281?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)