CVE-2021-26113

MEDIUMNVD 6.27.5▲

6.2

A use of a one-way hash with a predictable salt vulnerability [CWE-760] in FortiWAN before 4.5.9 may allow an attacker who has previously come in possession of the password file to potentially guess passwords therein stored.

CVSS v3: 6.2
EG Score: 7.5(medium)
EPSS: 27.2%
KEV: Not listed

Published

April 6, 2022

Last Modified

November 21, 2024

References (2)

psirt@fortinethttps://fortiguard.com/psirt/FG-IR-21-064
af854a3a-2127-422b-91ae-364da2661108https://fortiguard.com/psirt/FG-IR-21-064

Weakness Classification(1)

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

CWE-916Use of Password Hash With Insufficient Computational Effort

Data Freshness Timeline

(refreshed 7× in last 7d / 7× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 00:23 UTCEG score recompute
2026-05-26 00:23 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-26113?

CVE-2021-26113 is a medium vulnerability published on April 6, 2022. A use of a one-way hash with a predictable salt vulnerability [CWE-760] in FortiWAN before 4.5.9 may allow an attacker who has previously come in possession of the password file to potentially guess passwords therein stored.

When was CVE-2021-26113 disclosed?

CVE-2021-26113 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-2021-26113 actively exploited?

CVE-2021-26113 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 27.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-26113?

CVE-2021-26113 has a CVSS v3 base score of 6.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.5.

How do I remediate CVE-2021-26113?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-26113, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-26113

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CVE-2021-26113

📅 Published

🔄 Last Modified

🔗 References (2)