Stack-based buffer overflow in the sreplace function in ProFTPD 1.3.0 and earlier allows remote attackers, probably authenticated, to cause a denial of service and execute arbitrary code, as demonstrated by vd_proftpd.pm, a "ProFTPD remote exploit."
Conclusion & alert: CVE-2006-5815 is rated High Exploit Risk (90/100): CVSS Critical severity, with high exploitation likelihood (EPSS 74.25%, 99th percentile). Core evidence: 2 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 |
|---|---|---|---|---|
| 16852 | exploit_db | edb | 2011-01-09 | Exploit-DB ↗ |
| 2856 | exploit_db | edb | 2006-11-27 | 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 | 2026-06-21 | 74.08% | 74.25% | +0.18% |
| 2 | 2026-06-15 | 74.73% | 74.08% | -0.66% |
| 3 | 2026-05-18 | — | 74.73% | — |
Full EPSS history (29 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2006-5815: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. | https://security.alpinelinux.org/vuln/CVE-2006-5815 |
debian
|
high | CVE-2006-5815 high priority: Debian including 1 source packages (proftpd-dfsg), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2006-5815 |
gentoo
|
high | CVE-2006-5815: 1 GLSA(s) (200611-26), 1 atom(s) (net-ftp/proftpd); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-5815 |
ubuntu
|
medium | CVE-2006-5815 medium priority: Ubuntu including 2 source packages (proftpd, proftpd-dfsg), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): DNE 3, released 3, needs-triage 2. | https://ubuntu.com/security/CVE-2006-5815 |
: An off-by-one string manipulation flaw in ProFTPD's sreplace() function exists allowing a remote attacker to execute arbitrary code.
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| proftpd_project | proftpd | <= 1.3.0 | cpe:2.3:a:proftpd_project:proftpd:*:*:*:*:*:*:*:* |