CVE-2021-26096: fortinet fortinet fortisandbox Out-of-bounds Write
CVSS: 8.8v3.1HighModified
Published 04-08-2021Last modified 25-10-2024
Vulnerability summary
CVE-2021-26096 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in fortinet fortinet fortisandbox. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 54.7% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
0.77%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 04-08-2021PublishedVulnerability first disclosed.
- 25-10-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSources2 sources · 6.4–8.8
- CVE.orgCNA6.4MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L/E:X/RL:X/RC:XDiffers
Medium 6.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.77%
Chance of exploitation in the next 30 days
Percentile
55%
Versus all other CVEs
30-day change
0.00 pp
From 0.77% on 19-09-2026
19-09-202619-10-2026
EPSS score0.77%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Fortinet2 products
- fortinet fortisandboxFortiSandbox before 4.0.0
- fortisandbox≤ 3.1.4 | ≥ 3.2.0, < 3.2.3
1 vendor · 2 products