How severe is CVE-2023-48105?

CVE-2023-48105 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-48105 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-48105?

CVE-2023-48105 affects Bytecodealliance Webassembly Micro Runtime. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-48105?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-48105 published?

CVE-2023-48105 was published on 2023-11-22 and last updated on 2026-07-09.

CVE-2023-48105

CVE-2023-48105 is a high-severity vulnerability in Bytecodealliance Webassembly Micro Runtime with a CVSS 3.x base score of 7.5. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Bytecodealliance Webassembly Micro Runtime
Published: 2023-11-22
Last modified: 2026-07-09

Description

An heap overflow vulnerability was discovered in Bytecode alliance wasm-micro-runtime v.1.2.3 allows a remote attacker to cause a denial of service via the wasm_loader_prepare_bytecode function in core/iwasm/interpreter/wasm_loader.c.

Frequently asked questions

What is CVE-2023-48105?: An heap overflow vulnerability was discovered in Bytecode alliance wasm-micro-runtime v.1.2.3 allows a remote attacker to cause a denial of service via the wasm_loader_prepare_bytecode function in core/iwasm/interpreter/wasm_loader.c.
How severe is CVE-2023-48105?: CVE-2023-48105 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-48105 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-48105?: CVE-2023-48105 affects Bytecodealliance Webassembly Micro Runtime. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-48105?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-48105 published?: CVE-2023-48105 was published on 2023-11-22 and last updated on 2026-07-09.

References

Affected products (1)

cpe:2.3:a:bytecodealliance:webassembly_micro_runtime:1.2.3:*:*:*:*:*:*:*

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