CVE-2018-15390

MEDIUMNVD 6.86.8—
EchelonGraph scoreMEDIUM confidence

Score 6.8 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.8
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability in the FTP inspection engine of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software fails to release spinlocks when a device is running low on system memory, if the software is configured to apply FTP inspection and an access control rule to transit traffic, and the access control rule is associated with an FTP file policy. An attacker could exploit this vulnerability by sending a high rate of transit traffic through an affected device to cause a low-memory condition on the device. A successful exploit could allow the attacker to cause a software panic on the affected device, which could cause the device to reload and result in a temporary DoS condition.

CVSS v3
6.8
EG Score
6.8(medium)
EPSS
62.7%
KEV
Not listed

Published

October 5, 2018

Last Modified

November 21, 2024

References (4)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 14:04 UTCEPSS rescore
  2. 2026-07-21 15:21 UTCEPSS rescore
  3. 2026-07-20 17:04 UTCEPSS rescore
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  10. 2026-07-15 16:55 UTCEPSS rescore
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  12. 2026-07-13 22:26 UTCEPSS rescore
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  14. 2026-07-12 05:43 UTCEPSS rescore
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  1. 2026-07-01 15:03 UTCEPSS rescore
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  3. 2026-06-30 23:19 UTCEPSS rescore
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  5. 2026-06-29 14:03 UTCEPSS rescore
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  7. 2026-06-28 04:53 UTCEPSS rescore
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  18. 2026-06-21 01:57 UTCEPSS rescore
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  20. 2026-06-19 19:23 UTCEPSS rescore
  21. 2026-06-18 17:50 UTCEPSS rescore
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  40. 2026-06-06 13:45 UTCEPSS rescore
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  42. 2026-06-05 22:45 UTCEPSS rescore
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  44. 2026-06-05 06:08 UTCEPSS rescore
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  46. 2026-06-04 13:10 UTCEPSS rescore
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  48. 2026-06-02 20:11 UTCEPSS rescore
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  50. 2026-06-01 13:49 UTCEPSS rescore
  51. 2026-05-31 22:29 UTCEPSS rescore
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  55. 2026-05-29 13:41 UTCEPSS rescore
  56. 2026-05-28 13:42 UTCEPSS rescore
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  58. 2026-05-28 02:27 UTCEG score recompute
  59. 2026-05-28 02:27 UTCGHSA enrichment
  60. 2026-05-27 13:38 UTCEPSS rescore
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  62. 2026-05-26 13:42 UTCEPSS rescore
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  64. 2026-05-26 07:17 UTCEPSS rescore
  65. 2026-05-26 07:17 UTCEPSS rescore

Frequently asked(5)

What is CVE-2018-15390?
CVE-2018-15390 is a medium vulnerability published on October 5, 2018. A vulnerability in the FTP inspection engine of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software fails to…
When was CVE-2018-15390 disclosed?
CVE-2018-15390 was first published in the National Vulnerability Database on October 5, 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-2018-15390 actively exploited?
CVE-2018-15390 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 62.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-15390?
CVE-2018-15390 has a CVSS v3 base score of 6.8 (NVD).
How do I remediate CVE-2018-15390?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-15390, 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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