CVE-2023-38325: cryptography.io cryptography Improper Certificate Validation
Vulnerability summary
CVE-2023-38325 is a high (CVSS 7.5) Improper Certificate Validation vulnerability in cryptography.io cryptography. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 54.4% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 1 · Related 3Timeline
- 14-07-2023PublishedVulnerability first disclosed.
- 30-10-2024Last modifiedVulnerability information updated.
Description
The cryptography package before 41.0.2 for Python mishandles SSH certificates that have critical options.
CVSS metrics
8 scores · 5 sources · 2 versions- OSV · WolfiEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- OSV · ChainguardEcosystem advisory · calculated8.7HighCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · PypiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.73%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.73% on 05-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundCryptography
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Alpine1 product
- py3-cryptography≥ 40.0.0, < 41.0.2-r0
Chainguard1 product
- conda< 23.7.2-r1
Cryptography.io1 product
- cryptography≥ 40.0.0, < 41.0.2
Opensuse1 product
- python-cryptography&distro=openSUSE Tumbleweed< 41.0.2-2.1
PyPI1 product
- cryptography≥ 40.0.0, < 41.0.2
Wolfi1 product
- conda< 23.7.2-r1
6 vendors · 6 products
References
17 links- lists.fedoraproject.org/archives/…Vendor Advisory
Show all 17 references
- github.com/pyca/cryptographyPACKAGE