CVE-2019-15709Network attack vector

System file overwrite via unsanitized tcpdump parameter

Published Jun 1, 2020 · Updated Oct 25, 2024

Improper input validation in affected FortiAP-S/W2 and FortiAP-U firmware allows remote authenticated users to overwrite system files via CLI. The CLI admin console passes an inadequately validated tcpdump parameter that permits a crafted command to direct output into system files. Administrative CLI access is required on FortiAP-S/W2 6.2.0 through 6.2.2 or 6.0.5 and earlier, or FortiAP-U 6.0.1 and earlier; the overwrite can disrupt device operation, while confidentiality is unaffected.

CVSS severity6.5
Medium
EPSS probability1.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in affected FortiAP-S/W2 and FortiAP-U firmware allows remote authenticated users to overwrite system files via CLI. The CLI admin console passes an inadequately validated tcpdump parameter that permits a crafted command to direct output into system files. Administrative CLI access is required on FortiAP-S/W2 6.2.0 through 6.2.2 or 6.0.5 and earlier, or FortiAP-U 6.0.1 and earlier; the overwrite can disrupt device operation, while confidentiality is unaffected.

The record

CVE
CVE-2019-15709
Published
Jun 1, 2020
Updated
Oct 25, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-20, T1565
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jun 1, 2020CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
8.5NIST NVDAV:N/AC:L/Au:S/C:N/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1565Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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