CVE-2020-35359
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough...
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough connections to exceed the connection limit.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough connections to exceed the connection limit.
- Record
CVE-2020-35359- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-770
- Updated
- 2026-11-02
CVE List No score
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough connections to exceed the connection limit.
- Record
CVE-2020-35359- Updated
- 2026-11-02
EUVDEUVD-2020-23035 No score
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough connections to exceed the connection limit.
- Record
EUVD-2020-23035- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w7rv-vxq3-894m No score
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough...
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough connections to exceed the connection limit.
- Record
GHSA-w7rv-vxq3-894m- Weakness
- CWE-770
- Updated
- 2026-11-02
OSV
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough connections to exceed the connection limit.
- Record
CVE-2020-35359- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-35359
Pure-FTPd 1.0.48 allows remote attackers to prevent legitimate server use by making enough connections to exceed the connection limit.
- Record
UBUNTU-CVE-2020-35359- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pure-ftpdUbuntu:16.04:LTS |
All versions, plus listed versions 1.0.36-3.21.0.36-3.2build11.0.36-3.2+deb8u1build0.16.04.1 |
None known |
pure-ftpdUbuntu:18.04:LTS |
All versions, plus listed versions 1.0.46-11.0.46-1build11.0.46-1ubuntu18.04.1 |
None known |
pure-ftpdUbuntu:20.04:LTS |
All versions, plus listed versions 1.0.47-3build11.0.49-11.0.49-21.0.49-31.0.49-41.0.49-4ubuntu0.1 |
None known |
pure-ftpdUbuntu:22.04:LTS |
All versions, plus listed versions 1.0.49-4.1build11.0.50-21.0.50-2.11.0.50-2.1ubuntu0.22.04.1 |
None known |
pure-ftpdUbuntu:24.04:LTS |
All versions, plus listed versions 1.0.50-2.1build11.0.50-2.1ubuntu11.0.50-2.21.0.50-2.2build11.0.50-2.2build2 |
None known |
pure-ftpdUbuntu:25.10 |
All versions, plus listed versions 1.0.50-2.2build3 |
None known |
pure-ftpdUbuntu:26.04:LTS |
All versions, plus listed versions 1.0.50-2.2build31.0.50-2.2build4 |
None known |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | Pure-FTPd 1.0.48 - Denial of Service |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, Nuclei, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-35359 is a high vulnerability (CVSS 7.5) in Pureftpd Pure-ftpd, published December 26, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.46%, the 91st percentile. No source names a fixed version.