CVE-2021-41026

MEDIUMNVD 6.56.5—

6.5

A relative path traversal in FortiWeb versions 6.4.1, 6.4.0, and 6.3.0 through 6.3.15 may allow an authenticated attacker to retrieve arbitrary files from the underlying filesystem via specially crafted web requests.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 66.5%
KEV: Not listed

Published

April 6, 2022

Last Modified

November 21, 2024

References (2)

psirt@fortinethttps://fortiguard.com/advisory/FG-IR-21-156
af854a3a-2127-422b-91ae-364da2661108https://fortiguard.com/advisory/FG-IR-21-156

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-22Path Traversal

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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2026-05-29 13:42 UTCepss_batch

Frequently asked(5)

What is CVE-2021-41026?

CVE-2021-41026 is a medium vulnerability published on April 6, 2022. A relative path traversal in FortiWeb versions 6.4.1, 6.4.0, and 6.3.0 through 6.3.15 may allow an authenticated attacker to retrieve arbitrary files from the underlying filesystem via specially crafted web requests.

When was CVE-2021-41026 disclosed?

CVE-2021-41026 was first published in the National Vulnerability Database on April 6, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-41026 actively exploited?

CVE-2021-41026 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 66.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-41026?

CVE-2021-41026 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2021-41026?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-41026, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-41026

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-41026?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

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