CVE-2018-5541

HIGHNVD 7.57.5—

7.5

When F5 BIG-IP ASM 13.0.0-13.1.0.1, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.5.1-11.5.6 is processing HTTP requests, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 69.5%
KEV: Not listed

Published

July 25, 2018

Last Modified

November 21, 2024

References (4)

f5sirt@f5http://www.securityfocus.com/bid/104906
f5sirt@f5https://support.f5.com/csp/article/K12403422
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104906
af854a3a-2127-422b-91ae-364da2661108https://support.f5.com/csp/article/K12403422

Weakness Classification(1)

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

CWE-400Uncontrolled Resource Consumption (Denial of Service)

Data Freshness Timeline

(refreshed 9× in last 7d / 17× 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
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 04:41 UTCEG score recompute
2026-05-28 04:41 UTCGHSA enrichment
2026-05-27 13:38 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 00:46 UTCOSV refresh

Frequently asked(5)

What is CVE-2018-5541?

CVE-2018-5541 is a high vulnerability published on July 25, 2018. When F5 BIG-IP ASM 13.0.0-13.1.0.1, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.5.1-11.5.6 is processing HTTP requests, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.

When was CVE-2018-5541 disclosed?

CVE-2018-5541 was first published in the National Vulnerability Database on July 25, 2018, 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-2018-5541 actively exploited?

CVE-2018-5541 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 69.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-5541?

CVE-2018-5541 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2018-5541?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-5541, 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.

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CVE-2018-5541

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-5541?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)