Vulnerability · CVE-2025-59465
A malformed frame with oversized, invalid data can cause Node.js to crash by triggering an unhandled error .
Published Jan 20, 2026 · catalog updated Jul 15, 2026 · Node
Last checked Nov 5, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-59465. EPSS is 3.96%. Act only if a listed version of Node is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-55130 · High
- CVE-2025-55131 · High
- CVE-2025-55132 · Low
- CVE-2025-59466 · Medium
- CVE-2026-21636 · Medium
- Severity
- High7.5
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 3.96%
- Remediation
- Advisory link
- Affected products
- vendor nodejs Node 22.21.1 ≤22.21.1
A malformed frame with oversized, invalid data can cause Node.js to crash by triggering an unhandled error . Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example:
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor nodejs Node 22.21.1 ≤22.21.122.21.1 ≤22.21.1
How to fix CVE-2025-59465
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 22.21.1 ≤22.21.1
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-59465. EPSS is 3.96%. Act only if a listed version of Node is installed.
Which versions are affected?
Compare what you have installed with nodejs Node 22.21.1 ≤22.21.1 22.21.1 ≤22.21.1. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 3.96%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Jan 20, 2026 · EUVD
Detected
A malformed frame with oversized, invalid data can cause Node.js to crash by triggering an unhandled error . Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example:
Jul 15, 2026 · EUVD
Updated
A malformed frame with oversized, invalid data can cause Node.js to crash by triggering an unhandled error . Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error handlers to secure sockets, for example:
Sources
- CVE.orgVulnerability recordCVE-2025-59465
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-59465
30-day exploitation probability 3.96%
first.org - EUVDVulnerability recordEUVD-2026-3323
A malformed frame with oversized, invalid data can cause Node.js to crash by triggering an unhandled error . Instead of safely closing the connection, the process crashes, enabling a remote denial of service. This primarily affects applications that do not attach explicit error h
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 5, 2026
- CVE.orgNov 4, 2026
- EUVDNov 2, 2026