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 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.

Published: 2025-05-19 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-23165 is rated Low Risk (39/100): CVSS Low severity, with medium exploitation likelihood (EPSS 0.56%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-23165

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-25 0.36% 0.56% +0.20%
2 2026-03-15 0.06% 0.36% +0.30%
3 2025-05-25 — 0.06% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-23165

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 3.0 LOW
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.2 1.4 [email protected]

Weakness enumeration for CVE-2025-23165

OS Trackers for CVE-2025-23165

vendor priority summary link
alpine low CVE-2025-23165: 1 source package rows (nodejs); 1 state rows across 1 repos (3.21-main); fixed 1, open 0. https://security.alpinelinux.org/vuln/CVE-2025-23165
debian unimportant CVE-2025-23165 unimportant priority: Debian including 1 source packages (nodejs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-23165
redhat low — https://access.redhat.com/security/cve/CVE-2025-23165
suse medium CVE-2025-23165 severity moderate: SUSE including 72 source package names (0.0.17-1.1:nodejs22-22.15.1-150600.13.9.1, 0.0.17-1.1:npm22-22.15.1-150600.13.9.1, …), 195 product×package rows across 27 product lines (Container bci/nodejs, Container containers/open-webui, … (27 product lines)): Known Not Affected 127, Fixed 68. https://www.suse.com/security/cve/CVE-2025-23165/
ubuntu medium CVE-2025-23165 medium priority: Ubuntu including 1 source packages (nodejs), 10 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 7, ignored 2, released 1. https://ubuntu.com/security/CVE-2025-23165

Affected software / configurations for CVE-2025-23165

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-23165

cvelogic Threat Intelligence