CVE-2018-9849 — Pulse Secure Pulse Connect Secure 8.1.x before 8.1R14, 8.2.x before 8.2R11, and 8.3.x before 8.3R5 do not properly process nested XML entities, which allows remote attackers to cause a denial of service (memory consumption and memory errors) via a crafted XML document

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MEDIUM

Pulse Secure Pulse Connect Secure 8.1.x before 8.1R14, 8.2.x before 8.2R11, and 8.3.x before 8.3R5 do not properly process nested XML entities, which allows remote attackers to cause a denial of service (memory consumption and memory errors) via a crafted XML document

Published May 10, 2018

5.5

MEDIUM

CVSS 3.0

EPSS 0.95%

Description

Pulse Secure Pulse Connect Secure 8.1.x before 8.1R14, 8.2.x before 8.2R11, and 8.3.x before 8.3R5 do not properly process nested XML entities, which allows remote attackers to cause a denial of service (memory consumption and memory errors) via a crafted XML document.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.95% 0.00955

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00955

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (11 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.95% (0.00955)	59.98th	v5 (v2026.06.15)
Sep 20, 2026	0.95% (0.00955)	59.85th	v5 (v2026.06.15)
Jul 20, 2024	0.13% (0.00126)	47.78th	v3 (v2023.03.01)
May 25, 2024	0.13% (0.00126)	47.24th	v3 (v2023.03.01)
Apr 19, 2024	0.10% (0.00105)	42.25th	v3 (v2023.03.01)
Mar 19, 2024	0.09% (0.00089)	36.52th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00070)	28.46th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)
Feb 3, 2022	0.98% (0.00976)	26.54th	v5 (v2026.06.15)
Apr 14, 2021	0.98% (0.00976)	0.00th	v1

Weaknesses (0)

No CWE recorded.

References (2)

http://www.securityfocus.com/bid/104160
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/104160		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA43730		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published May 10, 2018

Updated Aug 5, 2024

Reserved Apr 7, 2018

Link CVE-2018-9849

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-9849

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-9849