How severe is CVE-2026-4639?

CVE-2026-4639 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-4639 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4639?

CVE-2026-4639 affects Gss Vitalsesp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-4639?

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.

Does CVE-2026-4639 have an EU (EUVD) identifier?

Yes. CVE-2026-4639 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14740.

When was CVE-2026-4639 published?

CVE-2026-4639 was published on 2026-03-24 and last updated on 2026-06-17.

CVE-2026-4639

CVE-2026-4639 is a high-severity vulnerability in Gss Vitalsesp with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14740
Weakness: CWE-863
Affected product: Gss Vitalsesp
Published: 2026-03-24
Last modified: 2026-06-17

Description

Vitals ESP developed by Galaxy Software Services has a Incorrect Authorization vulnerability, allowing authenticated remote attackers to perform certain administrative functions, thereby escalating privileges.

Frequently asked questions

What is CVE-2026-4639?: Vitals ESP developed by Galaxy Software Services has a Incorrect Authorization vulnerability, allowing authenticated remote attackers to perform certain administrative functions, thereby escalating privileges.
How severe is CVE-2026-4639?: CVE-2026-4639 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-4639 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4639?: CVE-2026-4639 affects Gss Vitalsesp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-4639?: 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.
Does CVE-2026-4639 have an EU (EUVD) identifier?: Yes. CVE-2026-4639 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14740.
When was CVE-2026-4639 published?: CVE-2026-4639 was published on 2026-03-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gss:vitalsesp:*:*:*:*:*:*:*:*

More vulnerabilities in Gss Vitalsesp

CVE-2026-4640 — High (CVSS 7.5): Vitals ESP developed by Galaxy Software Services has a Missing Authentication vulnerability, allowing unauthenticated…
CVE-2025-14255 — Medium (CVSS 6.5): Vitals ESP developed by Galaxy Software Services has a SQL Injection vulnerability, allowing authenticated remote…
CVE-2025-14254 — Medium (CVSS 6.5): Vitals ESP developed by Galaxy Software Services has a SQL Injection vulnerability, allowing authenticated remote…
CVE-2025-14253 — Medium (CVSS 4.9): Vitals ESP developed by Galaxy Software Services has an Arbitrary File Read vulnerability, allowing privileged remote…

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Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →