CVE-2021-22934

HIGHNVD 7.27.2—Trending — 3 sources updated this week

7.2

A vulnerability in Pulse Connect Secure before 9.1R12 could allow an authenticated administrator or compromised Pulse Connect Secure device in a load-balanced configuration to perform a buffer overflow via a malicious crafted web request.

CVSS v3: 7.2
EG Score: 7.2(medium)
EPSS: 89.5%
KEV: Not listed

Published

August 16, 2021

Last Modified

November 21, 2024

References (2)

support@hackeronehttps://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44858/?kA23Z000000L6oySAC
af854a3a-2127-422b-91ae-364da2661108https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44858/?kA23Z000000L6oySAC

Weakness Classification(1)

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

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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.

2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 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
2026-05-24 16:49 UTCepss_batch
2026-05-23 08:20 UTCEG score recompute
2026-05-23 08:20 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-22934?

CVE-2021-22934 is a high vulnerability published on August 16, 2021. A vulnerability in Pulse Connect Secure before 9.1R12 could allow an authenticated administrator or compromised Pulse Connect Secure device in a load-balanced configuration to perform a buffer overflow via a malicious crafted web request.

When was CVE-2021-22934 disclosed?

CVE-2021-22934 was first published in the National Vulnerability Database on August 16, 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-2021-22934 actively exploited?

CVE-2021-22934 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 89.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-22934?

CVE-2021-22934 has a CVSS v3 base score of 7.2 (NVD).

How do I remediate CVE-2021-22934?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-22934, 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-2021-22934

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CVE-2021-22934

📅 Published

🔄 Last Modified

🔗 References (2)