rsyslog before 7.6.6 and 8.x before 8.4.1 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash), possibly execute arbitrary code, or have other unspecified impact via a crafted priority (PRI) value that triggers an out-of-bounds array access.
Conclusion & alert: CVE-2014-3634 is rated High Exploit Risk (82.7/100): CVSS High severity, with high exploitation likelihood (EPSS 29.38%, 96th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +3.91% over the last day, indicating growing attacker interest. 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 | 2025-12-11 | 25.47% | 29.38% | +3.91% |
| 2 | 2025-10-22 | 29.38% | 25.47% | -3.91% |
| 3 | 2025-09-13 | — | 29.38% | — |
Full EPSS history (22 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-3634 not yet assigned priority: Debian including 2 source packages (inetutils, rsyslog), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2014-3634 |
gentoo
|
normal | CVE-2014-3634: 1 GLSA(s) (201412-35), 1 atom(s) (app-admin/rsyslog); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-3634 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2014-3634 |
suse
|
high | CVE-2014-3634 severity important: SUSE including 148 source package names (klogd-1.4.1-786.3, klogd-1.4.1-lp150.2.4, …), 397 product×package rows across 44 product lines (HPE Helion OpenStack 8, SUSE Liberty Linux 7, … (44 product lines)): Fixed 227, Known Not Affected 170. | https://www.suse.com/security/cve/CVE-2014-3634/ |
ubuntu
|
medium | CVE-2014-3634 medium priority: Ubuntu including 2 source packages (rsyslog, sysklogd), 20 status rows across 10 suites (lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): released 10, DNE 7, ignored 2, needs-triage 1. | https://ubuntu.com/security/CVE-2014-3634 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sysklogd_project | sysklogd | <= 1.5 | cpe:2.3:a:sysklogd_project:sysklogd:*:*:*:*:*:*:*:* |
| sysklogd_project | sysklogd | 1.1 | cpe:2.3:a:sysklogd_project:sysklogd:1.1:*:*:*:*:*:*:* |
| sysklogd_project | sysklogd | 1.2 | cpe:2.3:a:sysklogd_project:sysklogd:1.2:*:*:*:*:*:*:* |
| sysklogd_project | sysklogd | 1.3 | cpe:2.3:a:sysklogd_project:sysklogd:1.3:*:*:*:*:*:*:* |
| sysklogd_project | sysklogd | 1.4 | cpe:2.3:a:sysklogd_project:sysklogd:1.4:*:*:*:*:*:*:* |
| sysklogd_project | sysklogd | 1.4.1 | cpe:2.3:a:sysklogd_project:sysklogd:1.4.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | <= 7.6.5 | cpe:2.3:a:rsyslog:rsyslog:*:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.1.0 | cpe:2.3:a:rsyslog:rsyslog:8.1.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.1.1 | cpe:2.3:a:rsyslog:rsyslog:8.1.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.1.2 | cpe:2.3:a:rsyslog:rsyslog:8.1.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.1.3 | cpe:2.3:a:rsyslog:rsyslog:8.1.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.1.4 | cpe:2.3:a:rsyslog:rsyslog:8.1.4:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.1.5 | cpe:2.3:a:rsyslog:rsyslog:8.1.5:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.1.6 | cpe:2.3:a:rsyslog:rsyslog:8.1.6:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.2.0 | cpe:2.3:a:rsyslog:rsyslog:8.2.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.2.1 | cpe:2.3:a:rsyslog:rsyslog:8.2.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.2.2 | cpe:2.3:a:rsyslog:rsyslog:8.2.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.2.3 | cpe:2.3:a:rsyslog:rsyslog:8.2.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.3.0 | cpe:2.3:a:rsyslog:rsyslog:8.3.0:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.3.1 | cpe:2.3:a:rsyslog:rsyslog:8.3.1:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.3.2 | cpe:2.3:a:rsyslog:rsyslog:8.3.2:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.3.3 | cpe:2.3:a:rsyslog:rsyslog:8.3.3:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.3.4 | cpe:2.3:a:rsyslog:rsyslog:8.3.4:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.3.5 | cpe:2.3:a:rsyslog:rsyslog:8.3.5:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.4.0 | cpe:2.3:a:rsyslog:rsyslog:8.4.0:*:*:*:*:*:*:* |