How severe is CVE-2023-27115?

CVE-2023-27115 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-2023-27115 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-27115?

CVE-2023-27115 affects Webassembly. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-27115?

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

When was CVE-2023-27115 published?

CVE-2023-27115 was published on 2023-03-10 and last updated on 2026-06-17.

CVE-2023-27115

CVE-2023-27115 is a medium-severity vulnerability in Webassembly 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-665.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-665
Affected product: Webassembly
Published: 2023-03-10
Last modified: 2026-06-17

Description

WebAssembly v1.0.29 was discovered to contain a segmentation fault via the component wabt::cat_compute_size.

Frequently asked questions

What is CVE-2023-27115?: WebAssembly v1.0.29 was discovered to contain a segmentation fault via the component wabt::cat_compute_size.
How severe is CVE-2023-27115?: CVE-2023-27115 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-2023-27115 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-27115?: CVE-2023-27115 affects Webassembly. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-27115?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-27115 published?: CVE-2023-27115 was published on 2023-03-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:webassembly:webassembly:1.0.29:*:*:*:*:*:*:*

More vulnerabilities in Webassembly

CVE-2023-27117 — High (CVSS 7.8): WebAssembly v1.0.29 was discovered to contain a heap overflow via the component component wabt::Node::operator.
CVE-2023-27116 — Medium (CVSS 5.5): WebAssembly v1.0.29 discovered to contain an abort in CWriter::MangleType.

All CVEs affecting Webassembly →

Other CWE-665 (Improper Initialization) vulnerabilities

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CVE-2021-41264 — Critical (CVSS 9.8): OpenZeppelin Contracts is a library for smart contract development. In affected versions upgradeable contracts using…
CVE-2019-10196 — Critical (CVSS 9.8): A flaw was found in http-proxy-agent, prior to version 2.1.0. It was discovered http-proxy-agent passes an auth option…
CVE-2015-8367 — Critical (CVSS 9.8): The phase_one_correct function in Libraw before 0.17.1 allows attackers to cause memory errors and possibly execute…
CVE-2019-14271 — Critical (CVSS 9.8): In Docker 19.03.x before 19.03.1 linked against the GNU C Library (aka glibc), code injection can occur when the…

Browse all CWE-665 (Improper Initialization) vulnerabilities →