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CVE-2017-5868

33
FAUCET Score

CVE-2017-5868 describes a CRLF injection vulnerability in the web interface of OpenVPN Access Server version 2.1.4. This flaw allows remote attackers to inject arbitrary HTTP headers, leading to potential session fixation and HTTP response splitting attacks. Rated Medium severity with a CVSS score of 6.1, the vulnerability requires user interaction and has a low attack complexity, impacting confidentiality and integrity. While not listed in CISA's KEV catalog, a Nuclei template exists, and the vulnerability has received some community discussion and media coverage, indicating awareness, though no public Metasploit or ExploitDB exploits are available.

Impacted Technologies

VendorProductVersion(s)CPE
2.1.4CPE matchmatch criteria
cpe:2.3:a:openvpn:openvpn_access_server:2.1.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.62%
Probability of exploitation in next 30 days
EPSS Percentile
90.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Nuclei: CVE-2017-5868 · Oct 23, 2024
This CVE's current EPSS score of 0.0462 is in the 96th percentile among its peer group of 26,219 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

sysdream.com / news/lab/2017-05-05-cve-2017-5868-openvpn-access-server-crlf-injection-with-session-fixation
ExploitMitigationThird Party Advisory
openwall.com / lists/oss-security/2017/05/23/13
ExploitMailing ListThird Party Advisory
securitytracker.com / id/1038547
Third Party AdvisoryVDB Entry