Integer overflow in rsyslog before 7.6.7 and 8.x before 8.4.2 and sysklogd 1.5 and earlier allows remote attackers to cause a denial of service (crash) via a large priority (PRI) value. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-3634.
Conclusion & alert: CVE-2014-3683 is rated High Exploit Risk (65.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.87%). 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 | 2026-04-14 | 2.85% | 2.87% | +0.02% |
| 2 | 2026-02-22 | 2.19% | 2.85% | +0.66% |
| 3 | 2026-01-29 | — | 2.19% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-3683 not yet assigned priority: Debian including 1 source packages (rsyslog), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-3683 |
gentoo
|
normal | CVE-2014-3683: 1 GLSA(s) (201412-35), 1 atom(s) (app-admin/rsyslog); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-3683 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2014-3683 |
suse
|
medium | CVE-2014-3683 severity moderate: SUSE including 121 source package names (rsyslog, rsyslog-3.18.3-7.26.1, …), 326 product×package rows across 39 product lines (HPE Helion OpenStack 8, SUSE Linux Enterprise Desktop 12, … (39 product lines)): Fixed 187, Known Not Affected 139. | https://www.suse.com/security/cve/CVE-2014-3683/ |
ubuntu
|
medium | CVE-2014-3683 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-2014-3683 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| rsyslog | rsyslog | <= 7.6.6 | 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:*:*:*:*:*:*:* |
| rsyslog | rsyslog | 8.4.1 | cpe:2.3:a:rsyslog:rsyslog:8.4.1:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |