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Vulnerabilities

Vulnerability · CVE-2025-23165

In Node.js, the internal binding leaks memory due to a corrupted pointer in : a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set.

Published May 19, 2025 · catalog updated May 28, 2025 · Node

Check if you run it

No confirmed exploitation is on record for CVE-2025-23165. EPSS is 0.56%. 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.
Severity
Low3.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.56%
Remediation
Version ranges on file
Affected products
vendor nodejs Node 21.0 <21.*

In Node.js, the internal binding leaks memory due to a corrupted pointer in : a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set. This results in an unrecoverable memory leak on every call. Repeated use can cause unbounded memory growth, leading to a denial of service. Impact: * This vulnerability affects APIs relying on on Node.js release lines: v20 and v22.

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 21.0 <21.*21.0 <21.*

How to fix CVE-2025-23165

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-2025-23165. EPSS is 0.56%. Act only if a listed version of Node is installed.

Which versions are affected?

Compare what you have installed with nodejs Node 21.0 <21.* 21.0 <21.*. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.56%. 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.

  1. May 28, 2025 · EUVD

    Updated

    In Node.js, the internal binding leaks memory due to a corrupted pointer in : a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set. This results in an unrecoverable memory leak on every call. Repeated use can cause unbounded memory growth, leading to a denial of service. Impact: * This vulnerability affects APIs relying on on Node.js release lines: v20 and

  2. Oct 17, 2026 · Arch Linux Security

    Detected

    CVE-2025-23165 is named on the public Arch Linux Security page.

Sources

  • Arch Linux SecurityVendor advisoryCVE-2025-23165

    CVE-2025-23165 is named on the public Arch Linux Security page.

    security.archlinux.org
  • CVE.orgVulnerability recordCVE-2025-23165

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-23165

    30-day exploitation probability 0.6%

    first.org
  • EUVDVulnerability recordEUVD-2025-15708

    In Node.js, the internal binding leaks memory due to a corrupted pointer in : a UTF-16 path buffer is allocated but subsequently overwritten when the file descriptor is set. This results in an unrecoverable memory leak on every call. Repeated use can cause unbounded memory growth

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.