libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because libxml2 already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed and each affected application would need its own CVE.
Conclusion & alert: CVE-2013-0339 is rated High Exploit Risk (72.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.61%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-07-02 | 4.42% | 3.61% | -0.81% |
| 2 | 2026-06-15 | 1.78% | 4.42% | +2.64% |
| 3 | 2026-02-22 | — | 1.78% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2013-0339 not yet assigned priority: Debian including 1 source packages (libxml2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2013-0339 |
gentoo
|
normal | CVE-2013-0339: 1 GLSA(s) (201412-11), 1 atom(s) (app-emulation/emul-linux-x86-baselibs); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-0339 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2013-0339 |
ubuntu
|
medium | CVE-2013-0339 medium priority: Ubuntu including 1 source packages (libxml2), 5 status rows across 5 suites (lucid, precise, quantal, raring, upstream): released 3, needs-triage 1, not-affected 1. | https://ubuntu.com/security/CVE-2013-0339 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| xmlsoft | libxml2 | <= 2.9.1 | cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.7.0 | cpe:2.3:a:xmlsoft:libxml2:1.7.0:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.7.1 | cpe:2.3:a:xmlsoft:libxml2:1.7.1:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.7.2 | cpe:2.3:a:xmlsoft:libxml2:1.7.2:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.7.3 | cpe:2.3:a:xmlsoft:libxml2:1.7.3:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.7.4 | cpe:2.3:a:xmlsoft:libxml2:1.7.4:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.0 | cpe:2.3:a:xmlsoft:libxml2:1.8.0:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.1 | cpe:2.3:a:xmlsoft:libxml2:1.8.1:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.2 | cpe:2.3:a:xmlsoft:libxml2:1.8.2:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.3 | cpe:2.3:a:xmlsoft:libxml2:1.8.3:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.4 | cpe:2.3:a:xmlsoft:libxml2:1.8.4:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.5 | cpe:2.3:a:xmlsoft:libxml2:1.8.5:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.6 | cpe:2.3:a:xmlsoft:libxml2:1.8.6:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.7 | cpe:2.3:a:xmlsoft:libxml2:1.8.7:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.9 | cpe:2.3:a:xmlsoft:libxml2:1.8.9:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.10 | cpe:2.3:a:xmlsoft:libxml2:1.8.10:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.13 | cpe:2.3:a:xmlsoft:libxml2:1.8.13:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.14 | cpe:2.3:a:xmlsoft:libxml2:1.8.14:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 1.8.16 | cpe:2.3:a:xmlsoft:libxml2:1.8.16:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.0.0 | cpe:2.3:a:xmlsoft:libxml2:2.0.0:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.1.0 | cpe:2.3:a:xmlsoft:libxml2:2.1.0:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.1.1 | cpe:2.3:a:xmlsoft:libxml2:2.1.1:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.0 | cpe:2.3:a:xmlsoft:libxml2:2.2.0:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.0 | cpe:2.3:a:xmlsoft:libxml2:2.2.0:beta:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.1 | cpe:2.3:a:xmlsoft:libxml2:2.2.1:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.2 | cpe:2.3:a:xmlsoft:libxml2:2.2.2:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.3 | cpe:2.3:a:xmlsoft:libxml2:2.2.3:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.4 | cpe:2.3:a:xmlsoft:libxml2:2.2.4:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.5 | cpe:2.3:a:xmlsoft:libxml2:2.2.5:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.6 | cpe:2.3:a:xmlsoft:libxml2:2.2.6:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.7 | cpe:2.3:a:xmlsoft:libxml2:2.2.7:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.8 | cpe:2.3:a:xmlsoft:libxml2:2.2.8:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.9 | cpe:2.3:a:xmlsoft:libxml2:2.2.9:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.10 | cpe:2.3:a:xmlsoft:libxml2:2.2.10:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.2.11 | cpe:2.3:a:xmlsoft:libxml2:2.2.11:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.0 | cpe:2.3:a:xmlsoft:libxml2:2.3.0:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.1 | cpe:2.3:a:xmlsoft:libxml2:2.3.1:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.2 | cpe:2.3:a:xmlsoft:libxml2:2.3.2:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.3 | cpe:2.3:a:xmlsoft:libxml2:2.3.3:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.4 | cpe:2.3:a:xmlsoft:libxml2:2.3.4:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.5 | cpe:2.3:a:xmlsoft:libxml2:2.3.5:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.6 | cpe:2.3:a:xmlsoft:libxml2:2.3.6:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.7 | cpe:2.3:a:xmlsoft:libxml2:2.3.7:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.8 | cpe:2.3:a:xmlsoft:libxml2:2.3.8:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.9 | cpe:2.3:a:xmlsoft:libxml2:2.3.9:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.10 | cpe:2.3:a:xmlsoft:libxml2:2.3.10:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.11 | cpe:2.3:a:xmlsoft:libxml2:2.3.11:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.12 | cpe:2.3:a:xmlsoft:libxml2:2.3.12:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.13 | cpe:2.3:a:xmlsoft:libxml2:2.3.13:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.3.14 | cpe:2.3:a:xmlsoft:libxml2:2.3.14:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.1 | cpe:2.3:a:xmlsoft:libxml2:2.4.1:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.2 | cpe:2.3:a:xmlsoft:libxml2:2.4.2:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.3 | cpe:2.3:a:xmlsoft:libxml2:2.4.3:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.4 | cpe:2.3:a:xmlsoft:libxml2:2.4.4:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.5 | cpe:2.3:a:xmlsoft:libxml2:2.4.5:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.6 | cpe:2.3:a:xmlsoft:libxml2:2.4.6:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.7 | cpe:2.3:a:xmlsoft:libxml2:2.4.7:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.8 | cpe:2.3:a:xmlsoft:libxml2:2.4.8:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.9 | cpe:2.3:a:xmlsoft:libxml2:2.4.9:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.10 | cpe:2.3:a:xmlsoft:libxml2:2.4.10:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.11 | cpe:2.3:a:xmlsoft:libxml2:2.4.11:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.12 | cpe:2.3:a:xmlsoft:libxml2:2.4.12:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.13 | cpe:2.3:a:xmlsoft:libxml2:2.4.13:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.14 | cpe:2.3:a:xmlsoft:libxml2:2.4.14:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.15 | cpe:2.3:a:xmlsoft:libxml2:2.4.15:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.16 | cpe:2.3:a:xmlsoft:libxml2:2.4.16:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.17 | cpe:2.3:a:xmlsoft:libxml2:2.4.17:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.18 | cpe:2.3:a:xmlsoft:libxml2:2.4.18:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.19 | cpe:2.3:a:xmlsoft:libxml2:2.4.19:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.20 | cpe:2.3:a:xmlsoft:libxml2:2.4.20:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.21 | cpe:2.3:a:xmlsoft:libxml2:2.4.21:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.22 | cpe:2.3:a:xmlsoft:libxml2:2.4.22:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.23 | cpe:2.3:a:xmlsoft:libxml2:2.4.23:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.24 | cpe:2.3:a:xmlsoft:libxml2:2.4.24:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.25 | cpe:2.3:a:xmlsoft:libxml2:2.4.25:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.26 | cpe:2.3:a:xmlsoft:libxml2:2.4.26:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.27 | cpe:2.3:a:xmlsoft:libxml2:2.4.27:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.28 | cpe:2.3:a:xmlsoft:libxml2:2.4.28:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.29 | cpe:2.3:a:xmlsoft:libxml2:2.4.29:*:*:*:*:*:*:* |
| xmlsoft | libxml2 | 2.4.30 | cpe:2.3:a:xmlsoft:libxml2:2.4.30:*:*:*:*:*:*:* |