Low severity · published May 19, 2025
CVE-2025-23165
In Node.js, the `ReadFileUtf8` internal binding leaks memory due to a corrupted pointer in `uv_fs_s.file`: a UTF-16 path buffer is allocated but subsequently overwritten when the…
3.7
CVSS
0.6%
EPSS
No
On KEV
Description
In Node.js, the `ReadFileUtf8` internal binding leaks memory due to a corrupted pointer in `uv_fs_s.file`: 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 `ReadFileUtf8` on Node.js release lines: v20 and v22.
CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
node · nodejs
4.0 before 4.*; 5.0 before 5.*; 6.0 before 6.*; 7.0 before 7.*; 8.0 before 8.*; 9.0 before 9.*; +13 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-23165
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-23165
nodejs.org
https://nodejs.org/en/blog/vulnerability/may-2025-security-releases
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