CVE-2021-26096
CVE-2021-26096 is a medium-severity vulnerability in Fortinet Fortisandbox with a CVSS 3.x base score of 6.4. 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-787.
Key facts
- Severity: Medium (CVSS 3.x base score 6.4)
- CVSS v2: 6.5
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Fortinet Fortisandbox
- Published:
- Last modified:
Description
Multiple instances of heap-based buffer overflow in the command shell of FortiSandbox before 4.0.0 may allow an authenticated attacker to manipulate memory and alter its content by means of specifically crafted command line arguments.
Frequently asked questions
- What is CVE-2021-26096?
- Multiple instances of heap-based buffer overflow in the command shell of FortiSandbox before 4.0.0 may allow an authenticated attacker to manipulate memory and alter its content by means of specifically crafted command line arguments.
- How severe is CVE-2021-26096?
- CVE-2021-26096 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
- Is CVE-2021-26096 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26096?
- CVE-2021-26096 affects Fortinet Fortisandbox. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-26096?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-26096 published?
- CVE-2021-26096 was published on 2021-08-04 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:fortinet:fortisandbox:*:*:*:*:*:*:*:*
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