Is CVE-2025-64767 in the CISA KEV catalog?

No. CVE-2025-64767 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-64767?

CVE-2025-64767 has a CVSS v3 base score of 9.1 (CRITICAL).

What is the EPSS score for CVE-2025-64767?

CVE-2025-64767 has an EPSS score of 0.21% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2025-64767?

No published fix for CVE-2025-64767 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2025-64767

CRITICAL

9.1

CVSS v3

NVD

Description

hpke-js is a Hybrid Public Key Encryption (HPKE) module built on top of Web Cryptography API. Prior to version 1.7.5, the public SenderContext Seal() API has a race condition which allows for the same AEAD nonce to be re-used for multiple Seal() calls. This can lead to complete loss of Confidentiality and Integrity of the produced messages. This issue has been patched in version 1.7.5.

CWE-323

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-323 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-13082	High	8.1	4.6%	-	Fix
CVE-2017-7902	Critical	9.8	2.6%	-	-
CVE-2017-13080	Medium	5.3	2.3%	-	Fix
CVE-2017-13084	Medium	6.8	2.2%	-	-
CVE-2017-13079	Medium	5.3	2.1%	-	Fix
CVE-2017-13078	Medium	5.3	2.1%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-25.