How severe is CVE-2025-24015?

CVE-2025-24015 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-24015 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-24015?

CVE-2025-24015 affects Deno. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-24015?

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

Does CVE-2025-24015 have an EU (EUVD) identifier?

Yes. CVE-2025-24015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16794.

When was CVE-2025-24015 published?

CVE-2025-24015 was published on 2025-06-03 and last updated on 2026-06-17.

CVE-2025-24015

CVE-2025-24015 is a medium-severity vulnerability in Deno with a CVSS 3.x base score of 5.3. 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-347.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 7.7
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-16794
Weakness: CWE-347
Affected product: Deno
Published: 2025-06-03
Last modified: 2026-06-17

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Versions 1.46.0 through 2.1.6 have an issue that affects AES-256-GCM and AES-128-GCM in Deno in which the authentication tag is not being validated. This means tampered ciphertexts or incorrect keys might not be detected, which breaks the guarantees expected from AES-GCM. Older versions of Deno correctly threw errors in such cases, as does Node.js. Without authentication tag verification, AES-GCM degrades to essentially CTR mode, removing integrity protection. Authenticated data set with set_aad is also affected, as it is incorporated into the GCM hash (ghash) but this too is not validated, rendering AAD checks ineffective. Version 2.1.7 includes a patch that addresses this issue.

Frequently asked questions

What is CVE-2025-24015?: Deno is a JavaScript, TypeScript, and WebAssembly runtime. Versions 1.46.0 through 2.1.6 have an issue that affects AES-256-GCM and AES-128-GCM in Deno in which the authentication tag is not being validated. This means tampered ciphertexts or incorrect keys might not be detected, which breaks the guarantees expected from AES-GCM. Older versions of Deno correctly threw errors in such cases, as does Node.js. Without authentication tag verification, AES-GCM degrades to essentially CTR mode, removing integrity protection. Authenticated data set with set_aad is also affected, as it is incorporated into the GCM hash (ghash) but this too is not validated, rendering AAD checks ineffective. Version 2.1.7 includes a patch that addresses this issue.
How severe is CVE-2025-24015?: CVE-2025-24015 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-24015 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-24015?: CVE-2025-24015 affects Deno. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-24015?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-24015 have an EU (EUVD) identifier?: Yes. CVE-2025-24015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-16794.
When was CVE-2025-24015 published?: CVE-2025-24015 was published on 2025-06-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:deno:deno:*:*:*:*:*:*:*:*

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