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CVE-2023-47267

Thegreenbow VPN Client privilege escalation

9.8 CRITICALEPSS 0.75%
  1. Published19 Dec 2023

Description

An issue discovered in TheGreenBow Windows Enterprise Certified VPN Client 6.52, Windows Standard VPN Client 6.87, and Windows Enterprise VPN Client 6.87 allows attackers to gain escalated privileges via crafted changes to memory mapped file.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Thegreenbow VPN Client≥ 6.52.004 < 6.52.006 · ≥ 6.87.001 < 6.87.109 · ≥ 6.87.001 < 6.87.108

Remediation

Fixed in
Thegreenbow VPN Client≥ 6.52.006

References

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Frequently asked

Is CVE-2023-47267 being actively exploited?

CVE-2023-47267 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.75%.

How severe is CVE-2023-47267?

CVE-2023-47267 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.75% probability of exploitation.

Which products are affected by CVE-2023-47267?

Affected products include Thegreenbow VPN Client.

How do I fix CVE-2023-47267?

Upgrade affected software to a fixed version, for example Thegreenbow VPN Client 6.52.006 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-47267 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.