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High 7.5Published Mar 14, 2025

CVE-2024-8176Libexpat: expat: improper restriction of xml entity expansion depth in libexpat

Updated under an hour ago ()

Does this affect you?

It affects Red Hat Enterprise Linux 10 and 15 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.

CVSS
7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-674
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
redhat
NVD analysis
Deferred
Record last updated
Oct 15, 2026
First seen by InfoSec Signals
Oct 15, 2026

Affected products

Affected products
from 0:2.7.1-1.el10_0 not affected
CNA record
from 0:2.2.10-1.el8_2 not affected
CNA record
from 0:2.2.10-1.el8_4 not affected
CNA record
from 0:1.51.0-5.el8_4.2 not affected
CNA record
from 0:1.51.0-5.el8_4.2 not affected
CNA record
from 0:1.51.0-8.el8_8.1 not affected
CNA record
1.0
CNA record
from 0.33-1744075017 not affected
CNA record
from 1.14.3-1748529279 not affected
CNA record
4
CNA record
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name)
from V3.1.0 before V3.1.5
CISA ADP
Siemens RUGGEDCOM RST2428P
siemens:ruggedcom_rst2428p (from the name)
before V3.2
CISA ADP
Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family
siemens:scalance_xc_300_xr_300_xc_400_xr_500wg_xr_500_family (from the name)
before V3.2
CISA ADP
Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family
siemens:scalance_xcm_xrm_xch_xrh_300_family (from the name)
before V3.2
CISA ADP

References

  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vendor-advisory, x-refsource-redhat
  • vdb-entry, x-refsource-redhat
  • issue-tracking, x-refsource-redhat

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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