Varnish HTTP cache before 3.0.4: ACL bug
Conclusion & alert: CVE-2013-4090 is rated High Exploit Risk (68.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.23%). 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 | 2026-06-15 | 0.24% | 1.23% | +0.99% |
| 2 | 2026-04-23 | 0.35% | 0.24% | -0.11% |
| 3 | 2025-03-30 | — | 0.35% | — |
Full EPSS history (7 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] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2013-4090 not yet assigned priority: Debian including 1 source packages (varnish), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2013-4090 |
ubuntu
|
medium | CVE-2013-4090 medium priority: Ubuntu including 1 source packages (varnish), 5 status rows across 5 suites (bionic, eoan, trusty, upstream, xenial): not-affected 4, released 1. | https://ubuntu.com/security/CVE-2013-4090 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| varnish_cache_project | varnish_cache | < 3.0.4 | cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.varnish-cache.org/lists/pipermail/varnish-announce/2013-June/000684.html | Exploit Mailing List Patch Vendor Advisory |