CVE-2021-42216

CRITICALNVD 9.89.8—

9.8

A Broken or Risky Cryptographic Algorithm exists in AnonAddy 0.8.5 via VerificationController.php.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 53.1%
KEV: Not listed

Published

December 15, 2021

Last Modified

November 21, 2024

References (6)

cve@mitrehttp://anonaddy.com
cve@mitrehttps://github.com/anonaddy/anonaddy/blob/0478d9e8d364787f203113544123048a41f022c0/app/Http/Controllers/Auth/VerificationController.php#L67
cve@mitrehttps://huntr.dev/bounties/419f4e8a-ee15-4f80-bcbf-5c83513515dd
af854a3a-2127-422b-91ae-364da2661108http://anonaddy.com
af854a3a-2127-422b-91ae-364da2661108https://github.com/anonaddy/anonaddy/blob/0478d9e8d364787f203113544123048a41f022c0/app/Http/Controllers/Auth/VerificationController.php#L67
af854a3a-2127-422b-91ae-364da2661108https://huntr.dev/bounties/419f4e8a-ee15-4f80-bcbf-5c83513515dd

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× 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.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 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 07:17 UTCepss_batch
2026-05-26 06:18 UTCEG score recompute
2026-05-26 06:18 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-42216?

CVE-2021-42216 is a critical vulnerability published on December 15, 2021. A Broken or Risky Cryptographic Algorithm exists in AnonAddy 0.8.5 via VerificationController.php.

When was CVE-2021-42216 disclosed?

CVE-2021-42216 was first published in the National Vulnerability Database on December 15, 2021, 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-2021-42216 actively exploited?

CVE-2021-42216 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 53.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-42216?

CVE-2021-42216 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2021-42216?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-42216, 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-2021-42216

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-42216?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)