How severe is CVE-2019-7151?

CVE-2019-7151 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-7151 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-7151?

CVE-2019-7151 affects Webassembly Binaryen. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-7151?

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

When was CVE-2019-7151 published?

CVE-2019-7151 was published on 2019-01-29 and last updated on 2026-06-17.

CVE-2019-7151

CVE-2019-7151 is a medium-severity vulnerability in Webassembly Binaryen with a CVSS 3.x base score of 6.5. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Webassembly Binaryen
Published: 2019-01-29
Last modified: 2026-06-17

Description

A NULL pointer dereference was discovered in wasm::Module::getFunctionOrNull in wasm/wasm.cpp in Binaryen 1.38.22. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by wasm-opt.

Frequently asked questions

What is CVE-2019-7151?: A NULL pointer dereference was discovered in wasm::Module::getFunctionOrNull in wasm/wasm.cpp in Binaryen 1.38.22. A crafted input can cause segmentation faults, leading to denial-of-service, as demonstrated by wasm-opt.
How severe is CVE-2019-7151?: CVE-2019-7151 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-7151 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-7151?: CVE-2019-7151 affects Webassembly Binaryen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-7151?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-7151 published?: CVE-2019-7151 was published on 2019-01-29 and last updated on 2026-06-17.

References

https://github.com/WebAssembly/binaryen/issues/1881

Affected products (1)

cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:*

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