CVE-2020-8243

HIGHNVD 7.29.0▲Trending — 4 sources updated this weekExploited in the wild

7.2

A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to upload custom template to perform an arbitrary code execution.

CVSS v3: 7.2
EG Score: 9.0(high)
EPSS: 95.7%
KEV: ⚠ Exploited

Published

September 30, 2020

Last Modified

December 18, 2025

References (3)

support@hackeronehttps://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588
af854a3a-2127-422b-91ae-364da2661108https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44588
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-8243

Weakness Classification(1)

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

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 20× 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.

2026-06-06 22:58 UTCEG score recompute
2026-06-06 22:58 UTCGHSA enrichment
2026-06-06 18:46 UTCEG score recompute
2026-06-06 18:46 UTCGHSA enrichment
2026-06-06 14:34 UTCEG score recompute
2026-06-06 14:34 UTCGHSA enrichment
2026-06-06 13:46 UTCepss_batch
2026-06-06 13:46 UTCepss_batch
2026-06-06 13:46 UTCepss_batch
2026-06-06 10:21 UTCEG score recompute
2026-06-06 10:21 UTCGHSA enrichment
2026-06-06 06:09 UTCEG score recompute
2026-06-06 06:09 UTCGHSA enrichment
2026-06-06 01:56 UTCEG score recompute
2026-06-06 01:56 UTCGHSA enrichment
2026-06-05 22:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 22:43 UTCkev_newly_listed
2026-06-05 21:44 UTCEG score recompute
2026-06-05 21:44 UTCGHSA enrichment

Frequently asked(6)

What is CVE-2020-8243?

CVE-2020-8243 is a high vulnerability published on September 30, 2020. A vulnerability in the Pulse Connect Secure < 9.1R8.2 admin web interface could allow an authenticated attacker to upload custom template to perform an arbitrary code execution.

When was CVE-2020-8243 disclosed?

CVE-2020-8243 was first published in the National Vulnerability Database on September 30, 2020, with the most recent update on December 18, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-8243 actively exploited?

Yes. CISA added CVE-2020-8243 to the Known Exploited Vulnerabilities catalog on November 3, 2021, affecting Ivanti Pulse Connect Secure. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.

What is the CVSS score of CVE-2020-8243?

CVE-2020-8243 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.

Which products are affected by CVE-2020-8243?

CVE-2020-8243 affects Ivanti Pulse Connect Secure. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.

How do I remediate CVE-2020-8243?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8243, 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-2020-8243

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(6)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-8243?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (3)

Frequently asked(6)

Related CVEs(same CWE)