How severe is CVE-2023-31669?

CVE-2023-31669 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-31669 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-31669?

CVE-2023-31669 affects Webassembly Webassembly Binary Toolkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-31669?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-31669 published?

CVE-2023-31669 was published on 2023-05-23 and last updated on 2026-06-17.

CVE-2023-31669

CVE-2023-31669 is a medium-severity vulnerability in Webassembly Webassembly Binary Toolkit with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-116.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-116
Affected product: Webassembly Webassembly Binary Toolkit
Published: 2023-05-23
Last modified: 2026-06-17

Description

WebAssembly wat2wasm v1.0.32 allows attackers to cause a libc++abi.dylib crash by putting '@' before a quote (").

Frequently asked questions

What is CVE-2023-31669?: WebAssembly wat2wasm v1.0.32 allows attackers to cause a libc++abi.dylib crash by putting '@' before a quote (").
How severe is CVE-2023-31669?: CVE-2023-31669 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-31669 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-31669?: CVE-2023-31669 affects Webassembly Webassembly Binary Toolkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-31669?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-31669 published?: CVE-2023-31669 was published on 2023-05-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webassembly:webassembly_binary_toolkit:1.0.32:*:*:*:*:*:*:*

More vulnerabilities in Webassembly Webassembly Binary Toolkit

CVE-2023-31670 — High (CVSS 7.5): An issue in wasm2c 1.0.32, wasm2wat 1.0.32, wasm-decompile 1.0.32, and wasm-validate 1.0.32 allows attackers to cause a…
CVE-2023-46331 — Medium (CVSS 5.5): WebAssembly wabt 1.0.33 has an Out-of-Bound Memory Read in in DataSegment::IsValidRange(), which lead to segmentation…
CVE-2023-46332 — Medium (CVSS 5.5): WebAssembly wabt 1.0.33 contains an Out-of-Bound Memory Write in DataSegment::Drop(), which lead to segmentation fault.
CVE-2025-3122 — Low (CVSS 3.1): A vulnerability classified as problematic was found in WebAssembly wabt 1.0.36. Affected by this vulnerability is the…

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