GHSA-hw4g-fhcp-x5mq · Severity: high · Ecosystem: pip — Concurrent Execution using Shared Resource with Improper Synchronization in pyftpdlib
Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.2 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, a related issue to CVE-2010-3492.
Conclusion & alert: CVE-2010-3494 is rated Moderate Risk (43.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.58%). Core evidence: EPSS rose +1.17% 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 | 0.41% | 1.58% | +1.17% |
| 2 | 2025-10-28 | 0.50% | 0.41% | -0.08% |
| 3 | 2025-03-29 | — | 0.50% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
GHSA-hw4g-fhcp-x5mq · Severity: high · Ecosystem: pip — Concurrent Execution using Shared Resource with Improper Synchronization in pyftpdlib
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2010-3494 low priority: Debian including 1 source packages (python-pyftpdlib), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2010-3494 |
ubuntu
|
medium | CVE-2010-3494 medium priority: Ubuntu including 1 source packages (python-pyftpdlib), 8 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): not-affected 4, needs-triage 3, released 1. | https://ubuntu.com/security/CVE-2010-3494 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| g.rodola | pyftpdlib | <= 0.5.1 | cpe:2.3:a:g.rodola:pyftpdlib:*:*:*:*:*:*:*:* |
| g.rodola | pyftpdlib | 0.1 | cpe:2.3:a:g.rodola:pyftpdlib:0.1:*:*:*:*:*:*:* |
| g.rodola | pyftpdlib | 0.1.1 | cpe:2.3:a:g.rodola:pyftpdlib:0.1.1:*:*:*:*:*:*:* |
| g.rodola | pyftpdlib | 0.2.0 | cpe:2.3:a:g.rodola:pyftpdlib:0.2.0:*:*:*:*:*:*:* |
| g.rodola | pyftpdlib | 0.3.0 | cpe:2.3:a:g.rodola:pyftpdlib:0.3.0:*:*:*:*:*:*:* |
| g.rodola | pyftpdlib | 0.4.0 | cpe:2.3:a:g.rodola:pyftpdlib:0.4.0:*:*:*:*:*:*:* |
| g.rodola | pyftpdlib | 0.5.0 | cpe:2.3:a:g.rodola:pyftpdlib:0.5.0:*:*:*:*:*:*:* |