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CVE-2017-18588

18
FAUCET Score

CVE-2017-18588 describes a vulnerability in the security-framework Rust crate prior to version 0.1.12, where hostname verification for SSL/TLS certificates is bypassed if a ClientBuilder utilizes custom root certificates. This medium-severity vulnerability (CVSS 5.3) has a low impact, primarily affecting integrity (I:L), and can be exploited over the network with low attack complexity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.1.12CPE matchmatch criteria
cpe:2.3:a:security-framework_project:security-framework:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.65%
Probability of exploitation in next 30 days
EPSS Percentile
47.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0065 is in the 30th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: security-frameworkFixed in: 0.1.12

Vendor Advisories (1)

rustGHSA-jqqr-c2r2-9cvrmedium

Improper Certificate Validation in security-framework

Aug 25, 2021

References

rustsec.org / advisories/RUSTSEC-2017-0003.html
PatchThird Party Advisory