CVE-2021-45810: GlobalProtect-openconnect versions prior to 2.0.0 (exclusive) are affected by incorrect access control in GPSe

This week

HIGH 7.5REMOTEMITIGATE

CVE-2021-45810 is a high-severity flaw (CVSS 7.5) affecting globalprotect-openconnect. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GlobalProtect-openconnect versions prior to 2.0.0 (exclusive) are affected by incorrect access control in GPService through DBUS, GUI. The way GlobalProtect-Openconnect is set up enables arbitrary users to start a VPN connection to arbitrary servers. By hosting an openconnect compatible server, the attack can redirect the entire host's traffic via their own server.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Published	2022-03-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: globalprotect-openconnect project

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

Am I affected?

Timeline

2022-03-22 11:15 UTCPublished CVE record published
2026-06-17 04:14 UTCUpdated Record last modified

globalprotect-openconnect project globalprotect-openconnect MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy globalprotect-openconnect || rpm -q globalprotect-openconnect || globalprotect-openconnect --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2021-45810?

globalprotect-openconnect: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-45810 being exploited?

CVE-2021-45810 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-2021-45810 affect?

CVE-2021-45810 affects globalprotect-openconnect. Severity is high (CVSS 7.5). GlobalProtect-openconnect versions prior to 2.0.0 (exclusive) are affected by incorrect access control in GPService through DBUS, GUI. The way GlobalProtect-Openconnect is set up enables arbitrary users to start a VPN connection to arbitrar

How urgent is CVE-2021-45810?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-45809 CRITICAL 9.8 UPGRADE GlobalProtect-openconnect versions prior to 1.4.3 are affected by incorrect access control in GPService throug

References

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