How severe is CVE-2026-32999?

CVE-2026-32999 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-32999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-32999?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-32999 have an EU (EUVD) identifier?

Yes. CVE-2026-32999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32715.

When was CVE-2026-32999 published?

CVE-2026-32999 was published on 2026-05-28 and last updated on 2026-06-17.

CVE-2026-32999

CVE-2026-32999 is a critical-severity vulnerability with a CVSS 3.x base score of 9.0. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-32715
Weakness: CWE-94
Published: 2026-05-28
Last modified: 2026-06-17

Description

Insufficient character filtering in backup agent signing module on Comet Backup server allows authenticated tenant administrator to execute an arbitrary code on behalf of a privileged user on the affected server and connected devices.

Frequently asked questions

What is CVE-2026-32999?: Insufficient character filtering in backup agent signing module on Comet Backup server allows authenticated tenant administrator to execute an arbitrary code on behalf of a privileged user on the affected server and connected devices.
How severe is CVE-2026-32999?: CVE-2026-32999 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-32999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-32999?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-32999 have an EU (EUVD) identifier?: Yes. CVE-2026-32999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-32715.
When was CVE-2026-32999 published?: CVE-2026-32999 was published on 2026-05-28 and last updated on 2026-06-17.

References

https://support.cometbackup.com/hc/en-us/articles/40655100268439--CVE-2026-32999-RCE-on-Comet-Server-via-branding-configuration

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