Ivanti · Pulse Connect Secure

CVE-2020-8260

Ivanti Pulse Connect Secure Code Execution Vulnerability

Exploited in attacks High 7.2 Attack chance: 96%

What it is

A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary code execution using uncontrolled gzip extraction.

CISA: Pulse Connect Secure contains an unspecified vulnerability that allows an authenticated attacker to perform code execution using uncontrolled gzip extraction.

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: May 3, 2022

Added to the CISA list: November 3, 2021
Published: October 28, 2020
Severity: High 7.2 CVSS 3.1
Chance of attacks in the next 30 days (EPSS): 96% in the top 0.1% of all known vulnerabilities
Weakness: CWE-434
More details: NVD · CVE.org · CISA

All references (2)

More exploited flaws from Ivanti

Added	Vulnerability	Product	Severity	Attack chance
Nov 3, 2021	Code ExecutionCVE-2020-8243	Pulse Connect Secure	High 7.2	91%
Nov 3, 2021	Arbitrary File ReadCVE-2019-11510used by ransomware	Pulse Connect Secure	Critical 9.9	>99.9%
Nov 3, 2021	Use-After-FreeCVE-2021-22893used by ransomware	Pulse Connect Secure	Critical 10.0	47%
Nov 3, 2021	Collaboration Suite Buffer OverflowCVE-2021-22894	Pulse Connect Secure	High 8.8	41%
Nov 3, 2021	Command InjectionCVE-2021-22899	Pulse Connect Secure	High 8.8	23%
Nov 3, 2021	Unrestricted File UploadCVE-2021-22900	Pulse Connect Secure	High 7.2	14%
Oct 13, 2026	Authentication Bypass by SpoofingCVE-2026-104935	Connect Secure	High 8.6	87%
Jun 11, 2026	OS Command InjectionCVE-2026-10520	Sentry	Critical 10.0	99.9%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.