Is CVE-2021-26104 in the CISA KEV catalog?

No. CVE-2021-26104 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-26104?

CVE-2021-26104 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-26104?

CVE-2021-26104 has an EPSS score of 3.21% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-26104?

Upgrade fortianalyzer to 6.4.6 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-26104

HIGHEPSS 87th pctl

7.8

CVSS v3

NVD

Description

Multiple OS command injection (CWE-78) vulnerabilities in the command line interface of FortiManager 6.2.7 and below, 6.4.5 and below and all versions of 6.2.x, 6.0.x and 5.6.x, FortiAnalyzer 6.2.7 and below, 6.4.5 and below and all versions of 6.2.x, 6.0.x and 5.6.x, and FortiPortal 5.2.5 and below, 5.3.5 and below and 6.0.4 and below may allow a local authenticated and unprivileged user to execute arbitrary shell commands as root via specifically crafted CLI command parameters.

CWE-78OS Command Injection

How to fix

Remediation Available

fortianalyzerNVD

Affected:>= 6.4.0, < 6.4.6Fixed in:6.4.6CVE-2021-26104derived from NVD

fortimanagerNVD

Affected:>= 6.4.0, < 6.4.6Fixed in:6.4.6CVE-2021-26104derived from NVD

fortiportalNVD

Affected:>= 6.0.0, < 6.0.5Fixed in:6.0.5CVE-2021-26104derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.21%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Exploit1

github.com

Vendor Advisory1

fortiguard.com

Related Vulnerabilities

Other CWE-78 (OS Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2014-6271	Critical	9.8	100%	KEV	Fix
CVE-2019-16920	Critical	9.8	100%	KEV	-
CVE-2022-44877	Critical	9.8	100%	KEV	Fix
CVE-2020-8515	Critical	9.8	100%	KEV	-
CVE-2020-9054	Critical	9.8	100%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.