CVE-2025-65548

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.42% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 34.8% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-12-08 00:00Z9 MO AGO

Last updated

2025-12-11 14:36Z8 MO AGO

Reserved

2025-11-18

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-1284Improper Validation of Specified Quantity in InputBase

Data version

5.2

Document digest

e81c95c622e9f5f0c92ad33ddd06bd607b0fae9988027891ee263dfb9a37e771

• delvingbitcoin.orghttps://delvingbitcoin.org/t/public-disclosure-denial-of-service-using-htlc-in-cashu/2090
• github.comhttps://github.com/cashubtc/nuts/blob/main/14.md
• github.comhttps://github.com/cashubtc/nuts/blob/main/07.md
• preimage007.github.iohttps://preimage007.github.io/
• github.comhttps://github.com/jamesob/delving-bitcoin-archive/blob/master/archive/rendered-topics/2025-11-November/2025-11-02-public-disclosure-denial-of-service-using-htlc-in-cashu-id2090.md
• bitcointalk.orghttps://bitcointalk.org/index.php?topic=5564329