Pyopenssl
Vendor:
First CVE: Oct 8, 2018 · Active for 7 years
4
Total CVEs
Bottom 1%
2.0
Avg CVEs / Year
Bottom 1%
7.3
Avg CVSS
Higher Avg CVSS than 18% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Pyopenssl over time
Volume of CVEsAvg CVSS Base Score
First CVE
Oct 8, 2018
7 years ago
Most Recent CVE
Mar 18, 2026
128 days ago
CVE Severity & Scoring
Pyopenssl4 CVEs
50%
25%
25%
All CVEs352,231 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local0 (0.0%)
Network4 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low2 (50.0%)
High2 (50.0%)
Unknown0 (0.0%)
User Interaction
None4 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None4 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (4 CVEs).
4 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2026-27459CRITICAL pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` retu | Mar 18, 2026 | 9.8 | 37 | NO | NO |
CVE-2018-1000807HIGH Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free | Oct 8, 2018 | 8.1 | 27 | NO | NO |
CVE-2026-27448MEDIUM pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 0.14.0 and prior to version 26.0.0, if a user provided callback to `set_tlsext_servername_callback` ra | Mar 18, 2026 | 5.3 | 22 | NO | NO |
CVE-2018-1000808MEDIUM Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that | Oct 8, 2018 | 5.9 | 21 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (4 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (4 CVEs).
Media Mentions
Signals from CVEs in this product scope (4 CVEs).
Top CNAs Publishing CVEs For Pyopenssl
Top CWEs
Versions
No cataloged versions.