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Fencer Vulns
medium 6.5

CVE-2025-47153 json

Certain build processes for libuv and Node.js for 32-bit systems, such as for the nodejs binary package through nodejs_20.19.0+dfsg-2_i386.…

published 2025-05-01 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-12810

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

Certain build processes for libuv and Node.js for 32-bit systems, such as for the nodejs binary package through nodejs_20.19.0+dfsg-2_i386.deb for Debian GNU/Linux, have an inconsistent off_t size (e.g., building on i386 Debian always uses _FILE_OFFSET_BITS=64 for the libuv dynamic library, but uses the _FILE_OFFSET_BITS global system default of 32 for nodejs), leading to out-of-bounds access. NOTE: this is not a problem in the Node.js software itself. In particular, the Node.js website's download page does not offer prebuilt Node.js for Linux on i386.

Patch / fix

  • nodejs Debian 12 18.20.4+dfsg-1~deb12u1
  • nodejs Debian 14, Debian 13 20.19.0+dfsg1-1

debian advisories DEBIAN-CVE-2025-47153

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-47153 updated cvss 6.5

nodejs: libuv: Out-of-Bounds Access Due to Inconsistent off_t Size in libuv and Node.js Build on i386

  • Red Hat Enterprise Linux 8 npm, libuv, nodejs, nodejs-libs, nodejs-nodemon, nodejs-full-i18n, +2 more Red Hat Enterprise Linux 9 npm, libuv, nodejs, nodejs-libs, nodejs-full-i18n Red Hat Enterprise Linux 10 libuv, nodejs22 Red Hat OpenShift Container Platform 4 openshift/ose-rhel-coreos-8, openshift/ose-rhel-coreos-9
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L

Affected products

  • Debian trixie

Classification

Weakness
  • CWE-1102 Reliance on Machine-Dependent Data Representation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.