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CVE-2019-17656
A Stack-based Buffer Overflow vulnerability in the HTTPD daemon of FortiOS 6.0.10 and below, 6.2.2 and below and FortiProxy 1.0.x, 1.1.x,…
Medium5.4EPSS 1.6%
- Published
- Updated
- Reserved
- Assigned by
- fortinet
Description
A Stack-based Buffer Overflow vulnerability in the HTTPD daemon of FortiOS 6.0.10 and below, 6.2.2 and below and FortiProxy 1.0.x, 1.1.x, 1.2.9 and below, 2.0.0 and below may allow an authenticated remote attacker to crash the service by sending a malformed PUT request to the server. Fortinet is not aware of any successful exploitation of this vulnerability that would lead to code execution.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| fortinetCNA (assigner) | 3.1 | Medium5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L |
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.6% · top 24% of all CVEs (5 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.4.
Weakness
- Crash of the HTTPD service
- CWE-787 (opens in a new tab)All about CWE-787 and its CVEs
Affected products
Fortinet · Fortinet FortiProxy, FortiOS
- affected FortiProxy 1.0.x, 1.1.x, 1.2.9 and below, 2.0.0 and below; FortiOS 6.0.10 and below, 6.2.2 and below
References (2)
- https://fortiguard.com/advisory/FG-IR-19-248 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://fortiguard.com/advisory/FG-IR-21-007 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2019-17656)Record last updated .