CVE-2020-15408: An issue was discovered in Pulse Secure Pulse Connect Secure before 9.1R8

Routine

LOW 3.7UPGRADEDOWNGRADE

CVE-2020-15408 is a low-severity flaw (CVSS 3.7) affecting pulse connect secure, pulse secure desktop client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Pulse Secure Pulse Connect Secure before 9.1R8. An authenticated attacker can access the admin page console via the end-user web interface because of a rewrite.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.7 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Published	2020-07-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pulsesecure

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-07-28 15:15 UTCPublished CVE record published
2026-06-17 02:56 UTCUpdated Record last modified

pulsesecure pulse connect secure UPGRADE

Affected: <= 9.1

Fixed in: newer than 9.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pulse-connect-secure || rpm -q pulse-connect-secure || pulse-connect-secure --version

2. UPGRADE to newer than 9.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pulse-connect-secure

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pulse-connect-secure

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

pulsesecure pulse secure desktop client DOWNGRADE

Affected: 9.1 r1.0 · 9.1 r2.0 · 9.1 r3.0 · 9.1 r3.1 · 9.1 r4.0 · 9.1 r4.1 · 9.1 r4.2 · 9.1 r5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.1

1. Check installed version

apt-cache policy pulse-secure-desktop-client || rpm -q pulse-secure-desktop-client || pulse-secure-desktop-client --version

2. No fixed release: DOWNGRADE to a release before 9.1 (Debian / Ubuntu)

apt-cache madison pulse-secure-desktop-client sudo apt install pulse-secure-desktop-client=<VERSION_BEFORE_9.1> sudo apt-mark hold pulse-secure-desktop-client

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pulse-secure-desktop-client sudo dnf downgrade pulse-secure-desktop-client-<VERSION_BEFORE_9.1> sudo dnf versionlock add pulse-secure-desktop-client

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-15408?

pulse connect secure: upgrade to newer than 9.1; pulse secure desktop client: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2020-15408 being exploited?

CVE-2020-15408 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-15408 affect?

CVE-2020-15408 affects pulse connect secure, pulse secure desktop client. Severity is low (CVSS 3.7). An issue was discovered in Pulse Secure Pulse Connect Secure before 9.1R8. An authenticated attacker can access the admin page console via the end-user web interface because of a rewrite.

How urgent is CVE-2020-15408?

Priority 27/100. No elevated risk signals yet.

Related CVEs

CVE-2022-21826 MEDIUM 5.4 DOWNGRADE UPGRADE Pulse Secure version 9.115 and below may be susceptible to client-side http request smuggling, When the applic
CVE-2021-44720 HIGH 7.2 DOWNGRADE UPGRADE In Ivanti Pulse Secure Pulse Connect Secure (PCS) before 9.1R12, the administrator password is stored in the H
CVE-2021-22965 HIGH 7.5 DOWNGRADE UPGRADE A vulnerability in Pulse Connect Secure before 9.1R12.1 could allow an unauthenticated administrator to causes
CVE-2021-22938 HIGH 7.2 DOWNGRADE UPGRADE A vulnerability in Pulse Connect Secure before 9.1R12 could allow an authenticated administrator to perform co
CVE-2021-22937 HIGH 7.2 DOWNGRADE UPGRADE A vulnerability in Pulse Connect Secure before 9.1R12 could allow an authenticated administrator to perform a

References

← Back to latest CVEs