Skip to content
Fencer Intel
medium 4.3

CVE-2012-1147 json

readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a lar…

published 2012-07-03 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1181

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

readfilemap.c in expat before 2.1.0 allows context-dependent attackers to cause a denial of service (file descriptor consumption) via a large number of crafted XML files.

Patch / fix

  • expat openSUSE Tumbleweed 2.2.0-3.1

opensuse advisories openSUSE-SU-2024:10077-1

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-2012-1147 updated cvss 1.9

expat: resource leak in readfilemap.c

  • Red Hat Enterprise Linux 6 mingw32-expat
    affected: no fix planned “Will not fix”
  • Red Hat Directory Server 8 expat Red Hat Enterprise Linux 4 expat Red Hat Enterprise Linux 5 expat Red Hat Enterprise Linux 6 expat, compat-expat1
    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

Exploit prediction

2.54% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel 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.