CVE-2018-14366

CVE-2018-14366 is a medium-severity vulnerability in Ivanti Connect Secure with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-601.

Key facts

• Severity: Medium (CVSS 3.x base score 6.1)
• CVSS v2: 5.8
• EPSS exploit prediction: 1% (71st percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-601
• Affected product: Ivanti Connect Secure
• Published: 2018-09-06
• Last modified: 2026-06-17

Description

download.cgi in Pulse Secure Pulse Connect Secure 8.1RX before 8.1R13 and 8.3RX before 8.3R4 and Pulse Policy Secure through 5.2RX before 5.2R10 and 5.4RX before 5.4R4 have an Open Redirect Vulnerability.

Frequently asked questions

What is CVE-2018-14366?

download.cgi in Pulse Secure Pulse Connect Secure 8.1RX before 8.1R13 and 8.3RX before 8.3R4 and Pulse Policy Secure through 5.2RX before 5.2R10 and 5.4RX before 5.4R4 have an Open Redirect Vulnerability.

How severe is CVE-2018-14366?

CVE-2018-14366 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-14366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14366?

CVE-2018-14366 primarily affects Ivanti Connect Secure. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-14366?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-14366 published?

CVE-2018-14366 was published on 2018-09-06 and last updated on 2026-06-17.

References

• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43877

Affected products (23)

• cpe:2.3:a:ivanti:connect_secure:8.1:*:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:8.3:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_connect_secure:8.1r1.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_connect_secure:8.1rx:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_connect_secure:8.3rx:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r1.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r2.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r3.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r3.2:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r4.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r5.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r6.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r7.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r7.1:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r8.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r9.0:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2r9.1:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.2rx:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r1:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r2:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r2.1:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4r3:*:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:5.4rx:*:*:*:*:*:*:*

More vulnerabilities in Ivanti Connect Secure

• CVE-2021-22893 — Critical (CVSS 10.0): Pulse Connect Secure 9.0R3/9.1R1 and higher is vulnerable to an authentication bypass vulnerability exposed by the…
• CVE-2019-11510 — Critical (CVSS 10.0): In Pulse Secure Pulse Connect Secure (PCS) 8.2 before 8.2R12.1, 8.3 before 8.3R7.1, and 9.0 before 9.0R3.4, an…
• CVE-2016-4787 — Critical (CVSS 10.0): Pulse Connect Secure (PCS) 8.2 before 8.2r1, 8.1 before 8.1r2, 8.0 before 8.0r10, and 7.4 before 7.4r13.4 allow remote…
• CVE-2025-22467 — Critical (CVSS 9.9): A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6 allows a remote authenticated attacker…
• CVE-2024-21894 — Critical (CVSS 9.8): A heap overflow vulnerability in IPSec component of Ivanti Connect Secure (9.x, 22.x) and Ivanti Policy Secure allows…
• CVE-2018-20813 — Critical (CVSS 9.8): An input validation issue has been found with login_meeting.cgi in Pulse Secure Pulse Connect Secure 8.3RX before 8.3R2.

All CVEs affecting Ivanti Connect Secure →

Other CWE-601 (Open Redirect) vulnerabilities

• CVE-2018-3774 — Critical (CVSS 10.0): Incorrect parsing in url-parse <1.4.3 returns wrong hostname which leads to multiple vulnerabilities such as SSRF, Open…
• CVE-2019-25282 — Critical (CVSS 9.8): V-SOL GPON/EPON OLT Platform v2.03 contains an open redirect vulnerability in the script that allows attackers to…
• CVE-2020-36912 — Critical (CVSS 9.8): Plexus anblick Digital Signage Management 3.1.13 contains an open redirect vulnerability in the 'PantallaLogin' script…
• CVE-2025-43526 — Critical (CVSS 9.8): This issue was addressed with improved URL validation. This issue is fixed in Safari 26.2, macOS Tahoe 26.2. On a Mac…
• CVE-2025-55031 — Critical (CVSS 9.8): Malicious pages could use Firefox for iOS to pass FIDO: links to the OS and trigger the hybrid passkey transport. An…
• CVE-2024-22891 — Critical (CVSS 9.8): Nteract v.0.28.0 was discovered to contain a remote code execution (RCE) vulnerability via the Markdown link.

Browse all CWE-601 (Open Redirect) vulnerabilities →