The (1) serf_ssl_cert_issuer, (2) serf_ssl_cert_subject, and (3) serf_ssl_cert_certificate functions in Serf 0.2.0 through 1.3.x before 1.3.7 does not properly handle a NUL byte in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.
Conclusion & alert: CVE-2014-3504 is rated Moderate Risk (47.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.15%). Core evidence: EPSS rose +1.05% over the last day, indicating growing attacker interest. 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 | 2.10% | 3.15% | +1.05% |
| 2 | 2025-12-28 | 3.07% | 2.10% | -0.97% |
| 3 | 2025-12-27 | — | 3.07% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.0 | 2.0 | MEDIUM |
|
4.9 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-3504 not yet assigned priority: Debian including 1 source packages (serf), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-3504 |
gentoo
|
normal | CVE-2014-3504: 1 GLSA(s) (201610-05), 2 atom(s) (dev-vcs/subversion, net-libs/serf); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-3504 |
ubuntu
|
medium | CVE-2014-3504 medium priority: Ubuntu including 1 source packages (serf), 4 status rows across 4 suites (lucid, precise, trusty, upstream): released 3, ignored 1. | https://ubuntu.com/security/CVE-2014-3504 |
: <a href="http://cwe.mitre.org/data/definitions/297.html" target="_blank">CWE-297: Improper Validation of Certificate with Host Mismatch</a>
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| apache | subversion | 1.4.0 | cpe:2.3:a:apache:subversion:1.4.0:*:*:*:*:*:*:* |
| apache | subversion | 1.4.1 | cpe:2.3:a:apache:subversion:1.4.1:*:*:*:*:*:*:* |
| apache | subversion | 1.4.2 | cpe:2.3:a:apache:subversion:1.4.2:*:*:*:*:*:*:* |
| apache | subversion | 1.4.3 | cpe:2.3:a:apache:subversion:1.4.3:*:*:*:*:*:*:* |
| apache | subversion | 1.4.4 | cpe:2.3:a:apache:subversion:1.4.4:*:*:*:*:*:*:* |
| apache | subversion | 1.4.5 | cpe:2.3:a:apache:subversion:1.4.5:*:*:*:*:*:*:* |
| apache | subversion | 1.4.6 | cpe:2.3:a:apache:subversion:1.4.6:*:*:*:*:*:*:* |
| apache | subversion | 1.5.0 | cpe:2.3:a:apache:subversion:1.5.0:*:*:*:*:*:*:* |
| apache | subversion | 1.5.1 | cpe:2.3:a:apache:subversion:1.5.1:*:*:*:*:*:*:* |
| apache | subversion | 1.5.2 | cpe:2.3:a:apache:subversion:1.5.2:*:*:*:*:*:*:* |
| apache | subversion | 1.5.3 | cpe:2.3:a:apache:subversion:1.5.3:*:*:*:*:*:*:* |
| apache | subversion | 1.5.4 | cpe:2.3:a:apache:subversion:1.5.4:*:*:*:*:*:*:* |
| apache | subversion | 1.5.5 | cpe:2.3:a:apache:subversion:1.5.5:*:*:*:*:*:*:* |
| apache | subversion | 1.5.6 | cpe:2.3:a:apache:subversion:1.5.6:*:*:*:*:*:*:* |
| apache | subversion | 1.5.7 | cpe:2.3:a:apache:subversion:1.5.7:*:*:*:*:*:*:* |
| apache | subversion | 1.5.8 | cpe:2.3:a:apache:subversion:1.5.8:*:*:*:*:*:*:* |
| apache | subversion | 1.6.0 | cpe:2.3:a:apache:subversion:1.6.0:*:*:*:*:*:*:* |
| apache | subversion | 1.6.1 | cpe:2.3:a:apache:subversion:1.6.1:*:*:*:*:*:*:* |
| apache | subversion | 1.6.2 | cpe:2.3:a:apache:subversion:1.6.2:*:*:*:*:*:*:* |
| apache | subversion | 1.6.3 | cpe:2.3:a:apache:subversion:1.6.3:*:*:*:*:*:*:* |
| apache | subversion | 1.6.4 | cpe:2.3:a:apache:subversion:1.6.4:*:*:*:*:*:*:* |
| apache | subversion | 1.6.5 | cpe:2.3:a:apache:subversion:1.6.5:*:*:*:*:*:*:* |
| apache | subversion | 1.6.6 | cpe:2.3:a:apache:subversion:1.6.6:*:*:*:*:*:*:* |
| apache | subversion | 1.6.7 | cpe:2.3:a:apache:subversion:1.6.7:*:*:*:*:*:*:* |
| apache | subversion | 1.6.8 | cpe:2.3:a:apache:subversion:1.6.8:*:*:*:*:*:*:* |
| apache | subversion | 1.6.9 | cpe:2.3:a:apache:subversion:1.6.9:*:*:*:*:*:*:* |
| apache | subversion | 1.6.10 | cpe:2.3:a:apache:subversion:1.6.10:*:*:*:*:*:*:* |
| apache | subversion | 1.6.11 | cpe:2.3:a:apache:subversion:1.6.11:*:*:*:*:*:*:* |
| apache | subversion | 1.6.12 | cpe:2.3:a:apache:subversion:1.6.12:*:*:*:*:*:*:* |
| apache | subversion | 1.6.13 | cpe:2.3:a:apache:subversion:1.6.13:*:*:*:*:*:*:* |
| apache | subversion | 1.6.14 | cpe:2.3:a:apache:subversion:1.6.14:*:*:*:*:*:*:* |
| apache | subversion | 1.6.15 | cpe:2.3:a:apache:subversion:1.6.15:*:*:*:*:*:*:* |
| apache | subversion | 1.6.16 | cpe:2.3:a:apache:subversion:1.6.16:*:*:*:*:*:*:* |
| apache | subversion | 1.6.17 | cpe:2.3:a:apache:subversion:1.6.17:*:*:*:*:*:*:* |
| apache | subversion | 1.6.18 | cpe:2.3:a:apache:subversion:1.6.18:*:*:*:*:*:*:* |
| apache | subversion | 1.6.19 | cpe:2.3:a:apache:subversion:1.6.19:*:*:*:*:*:*:* |
| apache | subversion | 1.6.20 | cpe:2.3:a:apache:subversion:1.6.20:*:*:*:*:*:*:* |
| apache | subversion | 1.6.21 | cpe:2.3:a:apache:subversion:1.6.21:*:*:*:*:*:*:* |
| apache | subversion | 1.6.23 | cpe:2.3:a:apache:subversion:1.6.23:*:*:*:*:*:*:* |
| apache | subversion | 1.7.0 | cpe:2.3:a:apache:subversion:1.7.0:*:*:*:*:*:*:* |
| apache | subversion | 1.7.1 | cpe:2.3:a:apache:subversion:1.7.1:*:*:*:*:*:*:* |
| apache | subversion | 1.7.2 | cpe:2.3:a:apache:subversion:1.7.2:*:*:*:*:*:*:* |
| apache | subversion | 1.7.3 | cpe:2.3:a:apache:subversion:1.7.3:*:*:*:*:*:*:* |
| apache | subversion | 1.7.4 | cpe:2.3:a:apache:subversion:1.7.4:*:*:*:*:*:*:* |
| apache | subversion | 1.7.5 | cpe:2.3:a:apache:subversion:1.7.5:*:*:*:*:*:*:* |
| apache | subversion | 1.7.6 | cpe:2.3:a:apache:subversion:1.7.6:*:*:*:*:*:*:* |
| apache | subversion | 1.7.7 | cpe:2.3:a:apache:subversion:1.7.7:*:*:*:*:*:*:* |
| apache | subversion | 1.7.8 | cpe:2.3:a:apache:subversion:1.7.8:*:*:*:*:*:*:* |
| apache | subversion | 1.7.9 | cpe:2.3:a:apache:subversion:1.7.9:*:*:*:*:*:*:* |
| apache | subversion | 1.7.10 | cpe:2.3:a:apache:subversion:1.7.10:*:*:*:*:*:*:* |
| apache | subversion | 1.7.11 | cpe:2.3:a:apache:subversion:1.7.11:*:*:*:*:*:*:* |
| apache | subversion | 1.7.12 | cpe:2.3:a:apache:subversion:1.7.12:*:*:*:*:*:*:* |
| apache | subversion | 1.7.13 | cpe:2.3:a:apache:subversion:1.7.13:*:*:*:*:*:*:* |
| apache | subversion | 1.7.14 | cpe:2.3:a:apache:subversion:1.7.14:*:*:*:*:*:*:* |
| apache | subversion | 1.7.15 | cpe:2.3:a:apache:subversion:1.7.15:*:*:*:*:*:*:* |
| apache | subversion | 1.7.16 | cpe:2.3:a:apache:subversion:1.7.16:*:*:*:*:*:*:* |
| apache | subversion | 1.7.17 | cpe:2.3:a:apache:subversion:1.7.17:*:*:*:*:*:*:* |
| apache | subversion | 1.8.0 | cpe:2.3:a:apache:subversion:1.8.0:*:*:*:*:*:*:* |
| apache | subversion | 1.8.1 | cpe:2.3:a:apache:subversion:1.8.1:*:*:*:*:*:*:* |
| apache | subversion | 1.8.2 | cpe:2.3:a:apache:subversion:1.8.2:*:*:*:*:*:*:* |
| apache | subversion | 1.8.3 | cpe:2.3:a:apache:subversion:1.8.3:*:*:*:*:*:*:* |
| apache | subversion | 1.8.4 | cpe:2.3:a:apache:subversion:1.8.4:*:*:*:*:*:*:* |
| apache | subversion | 1.8.5 | cpe:2.3:a:apache:subversion:1.8.5:*:*:*:*:*:*:* |
| apache | subversion | 1.8.6 | cpe:2.3:a:apache:subversion:1.8.6:*:*:*:*:*:*:* |
| apache | subversion | 1.8.7 | cpe:2.3:a:apache:subversion:1.8.7:*:*:*:*:*:*:* |
| apache | subversion | 1.8.8 | cpe:2.3:a:apache:subversion:1.8.8:*:*:*:*:*:*:* |
| apache | subversion | 1.8.9 | cpe:2.3:a:apache:subversion:1.8.9:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| serf_project | serf | 0.2.0 | cpe:2.3:a:serf_project:serf:0.2.0:*:*:*:*:*:*:* |
| serf_project | serf | 0.3.0 | cpe:2.3:a:serf_project:serf:0.3.0:*:*:*:*:*:*:* |
| serf_project | serf | 0.3.1 | cpe:2.3:a:serf_project:serf:0.3.1:*:*:*:*:*:*:* |
| serf_project | serf | 0.4.0 | cpe:2.3:a:serf_project:serf:0.4.0:*:*:*:*:*:*:* |
| serf_project | serf | 0.5.0 | cpe:2.3:a:serf_project:serf:0.5.0:*:*:*:*:*:*:* |
| serf_project | serf | 0.6.0 | cpe:2.3:a:serf_project:serf:0.6.0:*:*:*:*:*:*:* |
| serf_project | serf | 0.6.1 | cpe:2.3:a:serf_project:serf:0.6.1:*:*:*:*:*:*:* |
| serf_project | serf | 0.7.0 | cpe:2.3:a:serf_project:serf:0.7.0:*:*:*:*:*:*:* |
| serf_project | serf | 0.7.1 | cpe:2.3:a:serf_project:serf:0.7.1:*:*:*:*:*:*:* |
| serf_project | serf | 0.7.2 | cpe:2.3:a:serf_project:serf:0.7.2:*:*:*:*:*:*:* |
| serf_project | serf | 1.0.0 | cpe:2.3:a:serf_project:serf:1.0.0:*:*:*:*:*:*:* |