GHSA-3rq5-2g8h-59hc · Severity: medium · Ecosystem: pip — Potential DoS via the Tudoor mechanism in eventlet and dnspython
eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.
Conclusion & alert: CVE-2023-29483 is rated High Exploit Risk (75.1/100): CVSS High severity, with high exploitation likelihood (EPSS 8.39%, 92th 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 |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | 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 | 2026-05-25 | 8.60% | 8.39% | -0.21% |
| 2 | 2026-05-12 | 7.32% | 8.60% | +1.28% |
| 3 | 2026-05-07 | — | 7.32% | — |
Full EPSS history (24 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.0 | 3.1 | HIGH |
|
2.2 | 4.7 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
GHSA-3rq5-2g8h-59hc · Severity: medium · Ecosystem: pip — Potential DoS via the Tudoor mechanism in eventlet and dnspython
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-29483 not yet assigned priority: Debian including 1 source packages (dnspython), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. | https://security-tracker.debian.org/tracker/CVE-2023-29483 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-29483 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2023-29483/ |
ubuntu
|
low | CVE-2023-29483 low priority: Ubuntu including 1 source packages (dnspython), 11 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 4, needs-triage 3, needed 2, ignored 1, released 1. | https://ubuntu.com/security/CVE-2023-29483 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| eventlet | eventlet | < 0.35.2 | cpe:2.3:a:eventlet:eventlet:*:*:*:*:*:*:*:* |
| dnspython | dnspython | < 2.6.0 | cpe:2.3:a:dnspython:dnspython:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 38 | cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* |
| fedoraproject | fedora | 39 | cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* |
| fedoraproject | fedora | 40 | cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:* |
| netapp | bootstrap_os | — | cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:* |