CVE-2026-4639: Vitals ESP developed by Galaxy Software Services has a Incorrect Authorization vulnerability, allowing authent

Q: How do I fix CVE-2026-4639?

vitalsesp: upgrade to newer than 6.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-4639 being exploited?

CVE-2026-4639 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-4639 affect?

CVE-2026-4639 affects vitalsesp. Severity is high (CVSS 8.8). Vitals ESP developed by Galaxy Software Services has a Incorrect Authorization vulnerability, allowing authenticated remote attackers to perform certain administrative functions, thereby escalating privileges.

Routine

HIGH 8.8UPGRADE

CVE-2026-4639 is a high-severity flaw (CVSS 8.8) affecting vitalsesp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-863
Published	2026-03-24
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: gss

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-24 05:16 UTCPublished CVE record published
2026-06-17 10:56 UTCUpdated Record last modified

gss vitalsesp UPGRADE

Affected: <= 6.3

Fixed in: newer than 6.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy vitalsesp || rpm -q vitalsesp || vitalsesp --version

2. UPGRADE to newer than 6.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade vitalsesp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vitalsesp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-4639?

vitalsesp: upgrade to newer than 6.3. Exact commands for each OS are on this page.

Is CVE-2026-4639 being exploited?

CVE-2026-4639 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-4639 affect?

CVE-2026-4639 affects vitalsesp. Severity is high (CVSS 8.8). 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 urgent is CVE-2026-4639?

Priority 37/100. High severity

Related CVEs

CVE-2026-4640 HIGH 7.5 UPGRADE Vitals ESP developed by Galaxy Software Services has a Missing Authentication vulnerability, allowing unauthen

References

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