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CVE-2020-8284
A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and…
Low3.7EPSS 3.9%
- Published
- Updated
- Reserved
- Assigned by
- hackerone
Description
A malicious server can use the FTP PASV response to trick curl 7.73.0 and earlier into connecting back to a given IP address and port, and this way potentially make curl extract information about services that are otherwise private and not disclosed, for example doing port scanning and service banner extractions.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Low3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVDNVD · Modified | 3.1 | Low3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 3.9% · top 9.7% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · 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: Low 3.7.
Weakness
Affected products
https://github.com/curl/curl
- affected 7.73.0 and earlier
References (18)
- https://hackerone.com/reports/1040166 (opens in a new tab)x_refsource_MISCx_transferred
- https://curl.se/docs/CVE-2020-8284.html (opens in a new tab)x_refsource_MISCx_transferred
- FEDORA-2020-ceaf490686 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [debian-lts-announce] 20201219 [SECURITY] [DLA 2500-1] curl security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2020-7ab62c73bc (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- GLSA-202012-14 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- DSA-4881 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://www.oracle.com/security-alerts/cpuApr2021.html (opens in a new tab)x_refsource_MISCx_transferred
- https://security.netapp.com/advisory/ntap-20210122-0007/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212325 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212326 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://support.apple.com/kb/HT212327 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.oracle.com//security-alerts/cpujul2021.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/security-alerts/cpujan2022.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.oracle.com/security-alerts/cpuapr2022.html (opens in a new tab)x_refsource_MISCx_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-389290.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
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-2020-8284)Record last updated .