Heap-based buffer overflow in oftpd daemon
CVSSv3 Score: 7.3 A heap-based buffer overflow vulnerability [CWE-122] in FortiAnalyzer Cloud oftpd daemon 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 Revised on 2026-04-14 00:00:00
CSIRTS triage
- What
- A heap-based buffer overflow vulnerability may allow remote unauthenticated attackers to execute arbitrary code.
- Who is affected
- All users of FortiAnalyzer Cloud.
- Urgency
- This high-severity vulnerability requires urgent remediation due to the potential for remote code execution.
- Action
- Patch FortiAnalyzer Cloud to the latest version to mitigate this vulnerability.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://fortiguard.fortinet.com/psirt/FG-IR-26-121
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-228280.90% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 55% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-22828 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Heap-based buffer overflow
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- mediumCVE-2026-58306: Heap-based buffer overflow vulnerability in Samsung Open Source Escargot allows Overflow Buffe…nvd · 2026-07-09
- highCVE-2026-56645: Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker …nvd · 2026-07-03
- highCVE-2026-22879: vtk vtk-dicom vtkDICOMItem::NewDataElement heap-based buffer overflow vulnerabilitynvd · 2026-06-25
- mediumCVE-2026-56132: In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c beca…msrc · 2026-06-09
- highCVE-2026-0264 PAN-OS: Heap-Based Buffer Overflow in DNS Proxy and DNS Server Allows Unauthenticated Remote Cod…paloalto · 2026-05-28
- criticalexploitedCVE-2009-3459: Adobe Acrobat and Reader Heap-Based Buffer Overflow Vulnerabilitycisa-kev · 2026-05-20
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