CVE-2021-26110
CVE-2021-26110 is a high-severity vulnerability in Fortinet Fortiproxy with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 4.6
- EPSS exploit prediction: 0% (16th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Fortinet Fortiproxy
- Published:
- Last modified:
Description
An improper access control vulnerability [CWE-284] in FortiOS autod daemon 7.0.0, 6.4.6 and below, 6.2.9 and below, 6.0.12 and below and FortiProxy 2.0.1 and below, 1.2.9 and below may allow an authenticated low-privileged attacker to escalate their privileges to super_admin via a specific crafted configuration of fabric automation CLI script and auto-script features.
Frequently asked questions
- What is CVE-2021-26110?
- An improper access control vulnerability [CWE-284] in FortiOS autod daemon 7.0.0, 6.4.6 and below, 6.2.9 and below, 6.0.12 and below and FortiProxy 2.0.1 and below, 1.2.9 and below may allow an authenticated low-privileged attacker to escalate their privileges to super_admin via a specific crafted configuration of fabric automation CLI script and auto-script features.
- How severe is CVE-2021-26110?
- CVE-2021-26110 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-26110 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26110?
- CVE-2021-26110 primarily affects Fortinet Fortiproxy. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-26110?
- 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.
- When was CVE-2021-26110 published?
- CVE-2021-26110 was published on 2021-12-08 and last updated on 2026-06-17.
References
Affected products (5)
- cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
- cpe:2.3:a:fortinet:fortiproxy:2.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:fortinet:fortiproxy:2.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
- cpe:2.3:o:fortinet:fortios:7.0.0:*:*:*:*:*:*:*
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