CVE-2026-22627
CVE-2026-22627 is a high-severity vulnerability in Fortinet Fortiswitchaxfixed with a CVSS 3.x base score of 8.8. 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-120.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 0% (20th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-10513
- Weakness: CWE-120
- Affected product: Fortinet Fortiswitchaxfixed
- Published:
- Last modified:
Description
A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiSwitchAXFixed 1.0.0 through 1.0.1 may allow an unauthenticated attacker within the same adjacent network to execute unauthorized code or commands on the device via sending a crafted LLDP packet.
Frequently asked questions
- What is CVE-2026-22627?
- A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiSwitchAXFixed 1.0.0 through 1.0.1 may allow an unauthenticated attacker within the same adjacent network to execute unauthorized code or commands on the device via sending a crafted LLDP packet.
- How severe is CVE-2026-22627?
- CVE-2026-22627 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-22627 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-22627?
- CVE-2026-22627 affects Fortinet Fortiswitchaxfixed. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-22627?
- 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-2026-22627 have an EU (EUVD) identifier?
- Yes. CVE-2026-22627 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10513.
- When was CVE-2026-22627 published?
- CVE-2026-22627 was published on 2026-03-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:fortinet:fortiswitchaxfixed:*:*:*:*:*:*:*:*
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