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CVE-2025-64767

32
FAUCET Score

CVE-2025-64767 is a critical vulnerability affecting hpke-js versions prior to 1.7.5, a Hybrid Public Key Encryption module. A race condition in the public SenderContext Seal() API allows for the reuse of AEAD nonces, leading to a complete loss of confidentiality and integrity for encrypted messages. With a CVSS score of 9.1 (CRITICAL), this vulnerability is easily exploitable over the network with low attack complexity, potentially resulting in full compromise of sensitive data. While there are no known exploits or Metasploit modules currently available, the vulnerability has garnered significant community discussion, indicating awareness and potential for future exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
DajiajiHpke-Js
< 1.7.5CNA affected

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 0th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: @hpke/coreFixed in: 1.7.5

Vendor Advisories (1)

npmGHSA-73g8-5h73-26h4critical

@hpke/core reuses AEAD nonces

Nov 20, 2025

References

github.com / dajiaji/hpke-js/blob/b7fd3592c7c08660c98289d67c6bb7f891af75c4/packages/core/src/senderContext.ts
github.com / dajiaji/hpke-js/commit/94a767c9b9f37ce48d5cd86f7017d8cacd294aaf
github.com / dajiaji/hpke-js/security/advisories/GHSA-73g8-5h73-26h4