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.
Conclusion & alert: CVE-2024-8176 is rated Moderate Risk (56/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.57%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-06-15 | 0.80% | 1.57% | +0.77% |
| 2 | 2026-05-10 | 0.73% | 0.80% | +0.08% |
| 3 | 2026-04-27 | — | 0.73% | — |
Full EPSS history (42 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-8176: 1 source package rows (expat); 6 state rows across 6 repos (3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 6, open 0. | https://security.alpinelinux.org/vuln/CVE-2024-8176 |
debian
|
not yet assigned | CVE-2024-8176 not yet assigned priority: Debian including 2 source packages (expat, libxmltok), 7 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 3. | https://security-tracker.debian.org/tracker/CVE-2024-8176 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2024-8176 |
suse
|
high | CVE-2024-8176 severity important: SUSE including 333 source package names (0.0.17-1.1:libexpat1-2.7.1-150400.3.28.1, 0.1.6-1.2:libexpat1-2.7.1-150400.3.28.1, …), 834 product×package rows across 387 product lines (Container bci/gcc, Container bci/golang, … (387 product lines)): Fixed 611, Known Affected 221, Known Not Affected 2. | https://www.suse.com/security/cve/CVE-2024-8176/ |
ubuntu
|
medium | CVE-2024-8176 medium priority: Ubuntu including 23 source packages (apache2, apr-util, …), 208 status rows across 10 suites (bionic, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 79, not-affected 65, DNE 37, ignored 21, released 6. | https://ubuntu.com/security/CVE-2024-8176 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| No affected products in dataset. | |||