CVE-2013-7440
UnknownEPSS 1.88%
Last modified
CVE-2013-7440 is a vulnerability of currently unknown severity. The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.. EPSS estimates a 1.88% chance of exploitation in the next 30 days.
Description
The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Python | Python | <= 2.7.8 |
| Python | Python | 3.0 |
| Python | Python | 3.0.1 |
| Python | Python | 3.1 |
| Python | Python | 3.1.1 |
| Python | Python | 3.1.2 |
| Python | Python | 3.1.3 |
| Python | Python | 3.1.4 |
| Python | Python | 3.1.5 |
| Python | Python | 3.1.2150 |
| Python | Python | 3.2 |
| Python | Python | 3.2.0 |
| Python | Python | 3.2.1 |
| Python | Python | 3.2.2 |
| Python | Python | 3.2.3 |
| Python | Python | 3.2.4 |
| Python | Python | 3.2.5 |
| Python | Python | 3.2.6 |
| Python | Python | 3.2.2150 |
| Python | Python | 3.3 |
| Python | Python | 3.3.0 |
| Python | Python | 3.3.1 |
| Python | Python | 3.3.2 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2013-7440?
The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.
How severe is CVE-2013-7440?
Severity scoring for CVE-2013-7440 is pending analysis. The EPSS model estimates a 1.88% probability of exploitation in the next 30 days.
How do I fix CVE-2013-7440?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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Are you affected by CVE-2013-7440?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST