CVE-2020-15352

CVE-2020-15352 is a high-severity vulnerability in Ivanti Connect Secure with a CVSS 3.x base score of 7.2. 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-611.

Key facts

• Severity: High (CVSS 3.x base score 7.2)
• CVSS v2: 6.5
• EPSS exploit prediction: 3% (86th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-611
• Affected product: Ivanti Connect Secure
• Published: 2020-10-27
• Last modified: 2026-06-17

Description

An XML external entity (XXE) vulnerability in Pulse Connect Secure (PCS) before 9.1R9 and Pulse Policy Secure (PPS) before 9.1R9 allows remote authenticated admins to conduct server-side request forgery (SSRF) attacks via a crafted DTD in an XML request.

Frequently asked questions

What is CVE-2020-15352?

An XML external entity (XXE) vulnerability in Pulse Connect Secure (PCS) before 9.1R9 and Pulse Policy Secure (PPS) before 9.1R9 allows remote authenticated admins to conduct server-side request forgery (SSRF) attacks via a crafted DTD in an XML request.

How severe is CVE-2020-15352?

CVE-2020-15352 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-15352 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15352?

CVE-2020-15352 primarily affects Ivanti Connect Secure. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-15352?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-15352 published?

CVE-2020-15352 was published on 2020-10-27 and last updated on 2026-06-17.

References

• https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601

Affected products (27)

• cpe:2.3:a:ivanti:connect_secure:9.1:-:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r1:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r2:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r3:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r4:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r4.1:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r4.2:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r4.3:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r5:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r6:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r7:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r8:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r8.1:*:*:*:*:*:*
• cpe:2.3:a:ivanti:connect_secure:9.1:r8.2:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_connect_secure:*:*:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r1:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r2:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r3:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r3.1:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r4:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r4.1:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r4.2:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r5:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r6:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r7:*:*:*:*:*:*
• cpe:2.3:a:ivanti:policy_secure:9.1:r8:*:*:*:*:*:*
• cpe:2.3:a:pulsesecure:pulse_policy_secure:*:*:*:*:*:*:*:*

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-611 (Improper Restriction of XML External Entity Reference (XXE)) vulnerabilities

• CVE-2022-22486 — Critical (CVSS 10.0): IBM Tivoli Workload Scheduler 9.4, 9.5, and 10.1 is vulnerable to an XML External Entity Injection (XXE) attack when…
• CVE-2019-14678 — Critical (CVSS 10.0): SAS XML Mapper 9.45 has an XML External Entity (XXE) vulnerability that can be leveraged by malicious attackers in…
• CVE-2015-9280 — Critical (CVSS 10.0): MailEnable before 8.60 allows XXE via an XML document in the request.aspx Options parameter.
• CVE-2018-1000838 — Critical (CVSS 10.0): autopsy version <= 4.9.0 contains a XML External Entity (XXE) vulnerability in CaseMetadata XML Parser that can result…
• CVE-2018-1000837 — Critical (CVSS 10.0): UML Designer version <= 8.0.0 contains a XML External Entity (XXE) vulnerability in XML parser for plugins that can…
• CVE-2018-1000835 — Critical (CVSS 10.0): KeePassDX version <= 2.5.0.0beta17 contains a XML External Entity (XXE) vulnerability in kdbx file parser that can…

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