CVE-2026-4639
Incorrect Authorization in Vitals ESP Enables Privilege Escalation
Publication date: 2026-03-24
Last updated on: 2026-04-15
Assigner: TWCERT/CC
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| gss | vitalsesp | to 6.3 (inc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-863 | The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2026-4639 is an Incorrect Authorization vulnerability in Vitals ESP versions 6.3 and earlier developed by Galaxy Software Services.
This vulnerability allows authenticated remote attackers with low privileges to perform certain administrative functions without needing additional user interaction.
As a result, these attackers can escalate their privileges within the system.
How can this vulnerability impact me? :
The vulnerability can lead to significant impacts including high loss of confidentiality, integrity, and availability.
- An authenticated attacker can escalate privileges and perform administrative functions.
- This can compromise sensitive data (confidentiality).
- It can also affect the integrity of the system by allowing unauthorized changes.
- Availability can be impacted if administrative functions are misused.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
The recommended immediate step to mitigate the CVE-2026-4639 vulnerability is to contact the vendor to obtain patches that address this incorrect authorization issue.