Heap-based buffer overflow in oftpd daemon

unknownCVE-2026-22828

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

vendor: Fortinet product: FortiAnalyzer Cloud Memory corruption

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

Source: Fortinet FortiGuard PSIRT (INTL · vendor-psirt · site)
Severity: unknown
Published: 2026-04-14
Exploitation: Not in CISA KEV at last sync

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 57% of all EPSS-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.

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