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 Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade expatUpgrade xmlrpc-c-clientUpgrade xmlrpc-c-client++Upgrade expat-develUpgrade xmlrpc-cUpgrade xmlrpc-c-develUpgrade xmlrpc-c-c++ | Apr 4, 2025 | Mar 14, 2025 |
| Alpine Linux | — | Upgrade expat | Aug 8, 2025 | Mar 14, 2025 |
| Amazon_linux_2023 | — | Upgrade xmlrpc-c-debuginfoUpgrade xmlrpc-c-appsUpgrade xmlrpc-c-clientUpgrade xmlrpc-c-client++Upgrade xmlrpc-c-c++-debuginfoUpgrade xmlrpc-c-apps-debuginfoUpgrade xmlrpc-c-c++Upgrade xmlrpc-c-client-debuginfoUpgrade xmlrpc-c-client++-debuginfoUpgrade xmlrpc-c | Oct 28, 2025 | Mar 13, 2025 |
| Apple Osx Libexpat | — | Upgrade macOS to the latest version | May 13, 2025 | Mar 14, 2025 |
| Debian | — | Upgrade expat | May 15, 2025 | Mar 14, 2025 |
| Dell Powerstore Dsa2025342 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Sep 2, 2025 |
| Dell Powerstore Dsa2026039 | — | Upgrade Dell PowerStoreOS to the latest version | Jan 13, 2026 | Jan 6, 2026 |
| Freebsd | — | Upgrade expat | Apr 10, 2025 | Apr 9, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade expat | Jul 11, 2025 | Mar 14, 2025 |
| Huawei Euleros 2_0_sp11 | — | Upgrade expat | Jun 13, 2025 | Mar 14, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade expat | Jun 11, 2025 | Mar 14, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade expat | Jul 1, 2025 | Mar 14, 2025 |
| Ibm Aix | — | Apply the fix or workaround for perl_advisory12Apply the fix or workaround for python_advisory15Apply the fix or workaround for perl_advisory10 | May 21, 2025 | Mar 14, 2025 |
| Nutanix Ahv | — | Upgrade Nutanix AHV to the latest version | Jun 5, 2026 | Aug 22, 2025 |
| Oracle_linux | — | Upgrade xmlrpc-c-client++Upgrade xmlrpc-cUpgrade xmlrpc-c-c++Upgrade expatUpgrade xmlrpc-c-clientUpgrade expat-devel | Apr 4, 2025 | Mar 13, 2025 |
| Redhat_linux | — | Upgrade expat-develUpgrade xmlrpc-c-c++-debuginfoUpgrade xmlrpc-c-debugsourceUpgrade expat-debuginfoUpgrade xmlrpc-c-develUpgrade expat-debugsourceUpgrade expatUpgrade xmlrpc-c-c++Upgrade xmlrpc-c-client-debuginfoUpgrade xmlrpc-c-debuginfoUpgrade xmlrpc-cUpgrade xmlrpc-c-apps-debuginfoNo solution existsUpgrade xmlrpc-c-client++ | Apr 3, 2025 | Mar 14, 2025 |
| Rocky_linux | — | Upgrade xmlrpc-cUpgrade xmlrpc-c-client-debuginfoUpgrade xmlrpc-c-debugsourceUpgrade expat-debugsourceUpgrade xmlrpc-c-develUpgrade xmlrpc-c-c++Upgrade expat-debuginfoUpgrade xmlrpc-c-debuginfoUpgrade expatUpgrade expat-develUpgrade xmlrpc-c-c++-debuginfoUpgrade xmlrpc-c-clientUpgrade xmlrpc-c-client++-debuginfoUpgrade xmlrpc-c-client++ | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade libexpat1Upgrade expatUpgrade libexpat-develUpgrade libexpat-devel-32bitUpgrade libexpat1-32bit | Dec 5, 2025 | Apr 4, 2025 |
| Ubuntu | — | Upgrade libexpat1Upgrade expat | Apr 9, 2025 | Mar 14, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 2, 2025 | Mar 14, 2025 |
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