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Vulnerabilities

Vulnerability · CVE-2025-14957

A vulnerability was identified in WebAssembly Binaryen up to 125.

Published Dec 19, 2025 · catalog updated Nov 3, 2026 · A vulnerability was identified

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-14957. EPSS is 0.21%. Act only if a listed version of A vulnerability was identified is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A vulnerability was identified).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Advisory link
Affected products
Debian:12 binaryen · Debian:13 binaryen · Debian:14 binaryen

A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and might be used. The name of the patch is 6fb2b917a79578ab44cf3b900a6da4c27251e0d4. Applying a patch is advised to resolve this issue.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 binaryen108-1, 112-1, 116-1
  • Debian:13 binaryen120-4, 120-4+ports, 122-1.1
  • Debian:14 binaryen0 → 130-2

How to fix CVE-2025-14957

  • Upgrade

    CVE-2025-14957 lists a fix boundary at 130-2. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 120-4 · 2 other packages on the advisory

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-14957. EPSS is 0.21%. Act only if a listed version of A vulnerability was identified is installed.

Which versions are affected?

Compare what you have installed with 108-1, 112-1, 116-1, 120-4, 120-4+ports, 122-1.1, 0 → 130-2. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 19, 2025 · Trivy Vulnerability DB

    Detected

    A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and migh

  2. Nov 3, 2026 · Trivy Vulnerability DB

    Fix available

    binaryen fixed in 130-2

  3. Nov 3, 2026 · Trivy Vulnerability DB

    Fix available

    binaryen fixed in 130-2

  4. Nov 3, 2026 · Trivy Vulnerability DB

    Updated

    A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer dereference. Local access is required to approach this attack. The exploit is publicly available and migh

Sources

  • CVE.orgVulnerability recordCVE-2025-14957

    Official CVE identifier

    cve.org
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2025-14957

    A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads t

    osv.dev

References

Freshness

Last verified in this catalog Nov 3, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Trivy Vulnerability DBNov 3, 2026