Is CVE-2024-28123 actively exploited?

No active exploitation of CVE-2024-28123 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-28123 be exploited remotely?

Yes. CVE-2024-28123 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-28123?

CVE-2024-28123 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2024-28123

CWE-787Published: March 21, 2024· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

Wasmi is an efficient and lightweight WebAssembly interpreter with a focus on constrained and embedded systems. In the WASMI Interpreter, an Out-of-bounds Buffer Write will arise if the host calls or resumes a Wasm function with more parameters than the default limit (128), as it will surpass the stack value. This doesn’t affect calls from Wasm to Wasm, only from host to Wasm. This vulnerability was patched in version 0.31.1.

NVD Source

Risk Analysis

The Wasmi WebAssembly interpreter is vulnerable to an out-of-bounds buffer write when handling host-to-Wasm function calls with excessive parameters. This critical flaw allows for potential memory corruption and is remotely exploitable without authentication, warranting immediate attention.

There is no known public exploit for this vulnerability, and it is not listed in the CISA KEV catalog.

Recommended Action

Users should upgrade to Wasmi version 0.31.1 or later to resolve this issue.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2024-28123 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.