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CVE-2023-2990

Fortra Globalscape Administration Server Denial of Service

HIGH
7.5
CVSS Score
Published: June 22, 2023 at 07:17 PM UTC
Updated: June 17, 2026 at 05:53 AM UTC
2 products affected across 2 vendorsEft ServerEft Server

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Severity
HIGH7.5
Exploit prediction
EPSS 0.9%
SSVC
PoC

Description

Fortra Globalscape EFT versions before 8.1.0.16 suffer from a denial of service vulnerability, where a compressed message that decompresses to itself can cause infinite recursion and crash the service

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Eft Server· Globalscape
95%
v < 8.1.0.16
Affected range stops below 8.1.0.16, so it looks safe — our inference, not a vendor statement
Eft Server· Fortra
60%
8.0.0 ≤ v < 8.1.0.168.0.0
Affected range stops below 8.1.0.16, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: [email protected]
https://kb.globalscape.com/Knowledgebase/11588/Is-EFT-susceptible-to-the-Denial-of-service-via-recursive-Deflate-Stream-vulnerability
ExploitThird Party Advisory
Source: [email protected]
https://www.rapid7.com/blog/post/2023/06/22/multiple-vulnerabilities-in-fortra-globalscape-eft-administration-server-fixed/

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-674

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