How severe is CVE-2025-69261?

CVE-2025-69261 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-2025-69261 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-2025-69261?

CVE-2025-69261 primarily affects Linuxfoundation Wasmedge. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-69261?

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.

Does CVE-2025-69261 have an EU (EUVD) identifier?

Yes. CVE-2025-69261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205847.

When was CVE-2025-69261 published?

CVE-2025-69261 was published on 2025-12-30 and last updated on 2026-06-17.

CVE-2025-69261

CVE-2025-69261 is a high-severity vulnerability in Linuxfoundation Wasmedge 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-190.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 5.5
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-205847
Weakness: CWE-190
Affected product: Linuxfoundation Wasmedge
Published: 2025-12-30
Last modified: 2026-06-17

Description

WasmEdge is a WebAssembly runtime. Prior to version 0.16.0-alpha.3, a multiplication in `WasmEdge/include/runtime/instance/memory.h` can wrap, causing `checkAccessBound()` to incorrectly allow the access. This leads to a segmentation fault. Version 0.16.0-alpha.3 contains a patch for the issue.

Frequently asked questions

What is CVE-2025-69261?: WasmEdge is a WebAssembly runtime. Prior to version 0.16.0-alpha.3, a multiplication in `WasmEdge/include/runtime/instance/memory.h` can wrap, causing `checkAccessBound()` to incorrectly allow the access. This leads to a segmentation fault. Version 0.16.0-alpha.3 contains a patch for the issue.
How severe is CVE-2025-69261?: CVE-2025-69261 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-2025-69261 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-2025-69261?: CVE-2025-69261 primarily affects Linuxfoundation Wasmedge. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-69261?: 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.
Does CVE-2025-69261 have an EU (EUVD) identifier?: Yes. CVE-2025-69261 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205847.
When was CVE-2025-69261 published?: CVE-2025-69261 was published on 2025-12-30 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:linuxfoundation:wasmedge:*:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:wasmedge:0.16.0:alpha1:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:wasmedge:0.16.0:alpha2:*:*:*:*:*:*

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