How severe is CVE-2021-45810?

CVE-2021-45810 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-45810 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45810?

CVE-2021-45810 affects Globalprotect-openconnect Project Globalprotect-openconnect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-45810?

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-2021-45810 published?

CVE-2021-45810 was published on 2022-03-22 and last updated on 2026-06-17.

CVE-2021-45810

CVE-2021-45810 is a high-severity vulnerability in Globalprotect-openconnect Project Globalprotect-openconnect with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Globalprotect-openconnect Project Globalprotect-openconnect
Published: 2022-03-22
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2021-45810?: 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.
How severe is CVE-2021-45810?: CVE-2021-45810 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-45810 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45810?: CVE-2021-45810 affects Globalprotect-openconnect Project Globalprotect-openconnect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-45810?: 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-2021-45810 published?: CVE-2021-45810 was published on 2022-03-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:globalprotect-openconnect_project:globalprotect-openconnect:-:*:*:*:*:*:*:*

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CVE-2021-45809 — Critical (CVSS 9.8): GlobalProtect-openconnect versions prior to 1.4.3 are affected by incorrect access control in GPService through DBUS,…

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