CVE-2026-27790

Q: How do I fix CVE-2026-27790?

Upgrade command centre to 9.50.1587 or later.

Q: Is CVE-2026-27790 being actively exploited?

Not that we know of. CVE-2026-27790 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.39% is the estimated probability that it will be exploited in the next 30 days. That is higher than 31% of all scored CVEs.

Q: How severe is CVE-2026-27790?

CVE-2026-27790 has a CVSS v3 base score of 2.7, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-27790 affect?

Published advisories record a fix for command centre (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

LOW

2.7

CVSS v3

NVD

Description

Uncaught Exception (CWE-248) in the T20 Readers allows an authenticated and authorized operator to trigger a restart by sending specific requests, resulting in a temporary denial of service. Version of Command Centre affected: * 9.50 prior to vCR9.50.260616a (distributed in 9.50.1587(MR1)) * 9.40 prior to vCR9.40.260616a (distributed in 9.40.3130(MR3)) * 9.30 prior to vCR9.30.260616a (distributed in 9.30.3983(MR5)) * 9.20 prior to vCR9.20.260616a (distributed in 9.20.4349(MR7)) * all versions of 9.10 and prior.

CWE-248

How to fix

Remediation Available

command centreNVD

Affected:>= 9.50.978, < 9.50.1587Fixed in:9.50.1587CVE-2026-27790derived from NVD

Affected:>= 9.40.1359, < 9.40.3130Fixed in:9.40.3130CVE-2026-27790derived from NVD

Affected:< 9.20.4349Fixed in:9.20.4349CVE-2026-27790derived from NVD

Affected:>= 9.30.1594, < 9.30.3983Fixed in:9.30.3983CVE-2026-27790derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Vendor Advisory1

security.gallagher.com

Related Vulnerabilities

Other CWE-248 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-59538	High	7.5	8.3%	-	Fix
CVE-2021-37714	High	7.5	6.9%	-	Fix
CVE-2025-53366	Unscored	-	6.8%	-	-
CVE-2018-11466	Critical	9.8	4.0%	-	-
CVE-2025-59465	High	7.5	3.8%	-	Fix
CVE-2018-7852	High	7.5	3.6%	-	-

Common questions

How do I fix CVE-2026-27790?

Upgrade command centre to 9.50.1587 or later.

Is CVE-2026-27790 being actively exploited?

Not that we know of. CVE-2026-27790 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.39% is the estimated probability that it will be exploited in the next 30 days. That is higher than 31% of all scored CVEs.

How severe is CVE-2026-27790?

CVE-2026-27790 has a CVSS v3 base score of 2.7, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-27790 affect?

Published advisories record a fix for command centre (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-08-14.