CVE-2021-45810Public exploit

Host traffic redirection via unrestricted D-Bus connections

Published Mar 22, 2022 · Updated Aug 4, 2024

Incorrect access control in GlobalProtect-openconnect before 2.0.0 allows local users to redirect host traffic through a malicious VPN. GPService accepts connection requests for arbitrary OpenConnect-compatible servers over its system D-Bus interface without administrator approval. Any local account that can reach the D-Bus service can start the tunnel, placing the host's routed traffic under the attacker's server.

CVSS severity7.5
High
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect access control in GlobalProtect-openconnect before 2.0.0 allows local users to redirect host traffic through a malicious VPN. GPService accepts connection requests for arbitrary OpenConnect-compatible servers over its system D-Bus interface without administrator approval. Any local account that can reach the D-Bus service can start the tunnel, placing the host's routed traffic under the attacker's server.

The record

CVE
CVE-2021-45810
Published
Mar 22, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1557
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1557Adversary-in-the-Middle

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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