CVE-2026-22828Network attack vector

Unauthenticated code execution via oftpd heap overflow

Published Apr 14, 2026 · Updated Apr 14, 2026

Heap-based buffer overflow in Fortinet FortiAnalyzer Cloud and FortiManager Cloud 7.6.2 through 7.6.4 allows remote attackers to execute code. The oftpd daemon mishandles crafted requests and writes beyond a heap buffer, but Fortinet has not disclosed the specific parsing routine or length error. Unauthenticated network access is sufficient; substantial preparation is required because ASLR and network segmentation impede reliable code execution.

CVSS severity8.1
High
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Fortinet FortiAnalyzer Cloud and FortiManager Cloud 7.6.2 through 7.6.4 allows remote attackers to execute code. The oftpd daemon mishandles crafted requests and writes beyond a heap buffer, but Fortinet has not disclosed the specific parsing routine or length error. Unauthenticated network access is sufficient; substantial preparation is required because ASLR and network segmentation impede reliable code execution.

The record

CVE
CVE-2026-22828
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
Fortinet
Product
FortiAnalyzer Cloud
Classifications
CWE-122, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.6.2 <=7.6.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortinet · FortiAnalyzer Cloudversion=7.6.2 <=7.6.4
Fortinet · FortiManager Cloudversion=7.6.2 <=7.6.4

Published CVSS scores

7.3Fortinet, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
8.1Fortinet, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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