Is there a public exploit for CVE-2025-71470?

No public exploit for CVE-2025-71470 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2025-71470?

CVE-2025-71470 scores CVSS 6.8 (v4.0), rated medium.

What does CVE-2025-71470 affect?

CVE-2025-71470 affects bellard mquickjs.

6.8 Medium

MicroQuickJS (mquickjs) before commit 99eed3f contains an out-of-bounds read vulnerability because JSCall() raises exceptions during frame…

CVE-2025-71470

MicroQuickJS (mquickjs) before commit 99eed3f contains an out-of-bounds read vulnerability because JSCall() raises exceptions during frame setup without updating ctx->sp and ctx->fp. Attackers can supply JavaScript that calls a non-function value, causing buildbacktrace() to walk stale frame pointers and crash the engine for denial of service.

Assessment

CVSS: 6.8 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 15 November 2026
Last updated: 15 November 2026
Affected: bellard · mquickjs
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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