How severe is CVE-2026-22828?

CVE-2026-22828 has a CVSS 3.x base score of 8.1, rated high 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-2026-22828 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22828?

CVE-2026-22828 primarily affects Fortinet Fortianalyzer Cloud. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-22828?

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-2026-22828 have an EU (EUVD) identifier?

Yes. CVE-2026-22828 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22327.

When was CVE-2026-22828 published?

CVE-2026-22828 was published on 2026-04-14 and last updated on 2026-06-17.

CVE-2026-22828

CVE-2026-22828 is a high-severity vulnerability in Fortinet Fortianalyzer Cloud with a CVSS 3.x base score of 8.1. 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-122.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22327
Weakness: CWE-122
Affected product: Fortinet Fortianalyzer Cloud
Published: 2026-04-14
Last modified: 2026-06-17

Description

A heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer Cloud 7.6.2 through 7.6.4, FortiManager Cloud 7.6.2 through 7.6.4 may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. Successful exploitation would require a large amount of effort in preparation because of ASLR and network segmentation

Frequently asked questions

What is CVE-2026-22828?: A heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer Cloud 7.6.2 through 7.6.4, FortiManager Cloud 7.6.2 through 7.6.4 may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. Successful exploitation would require a large amount of effort in preparation because of ASLR and network segmentation
How severe is CVE-2026-22828?: CVE-2026-22828 has a CVSS 3.x base score of 8.1, rated high 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-2026-22828 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22828?: CVE-2026-22828 primarily affects Fortinet Fortianalyzer Cloud. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-22828?: 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-2026-22828 have an EU (EUVD) identifier?: Yes. CVE-2026-22828 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22327.
When was CVE-2026-22828 published?: CVE-2026-22828 was published on 2026-04-14 and last updated on 2026-06-17.

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-121

Affected products (2)

cpe:2.3:a:fortinet:fortianalyzer_cloud:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimanager_cloud:*:*:*:*:*:*:*:*

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