CVE catalog
CVE-2020-9497
UBUNTU-CVE-2020-9497
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.79% · Oct 27, 2026
Apache Guacamole 1.1.0 and older do not properly validate datareceived from RDP servers via static virtual channels. If a userconnects to a malicious or compromised RDP server, specially-craftedPDUs could result in disclosure of information within the memory ofthe guacd process handling the connection.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | guacamole-server | 11 | 1.3.0-1 | fixed |
| Debian | guacamole-server | 9 | 0.9.9-2 | vulnerable |
| Debian | guacamole-server | 9 | 0.9.9-2+deb9u1 | fixed |
| Ubuntu | guacamole-client | 16.04 | 0.8.3-1.1 | vulnerable |
| Ubuntu | guacamole-client | 16.04 | 0.8.3-1.2 | vulnerable |
| Ubuntu | guacamole-client | 18.04 | 0.9.9+dfsg-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | guacamole-server | deb | 11 | 1.3.0-1 | Not reported | DEBIAN-CVE-2020-9497 | Not reported |
| Debian | guacamole-server | deb | 9 | 0.9.9-2+deb9u1 | Not reported | DLA-2435-1 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2020-9497]
- [https://osv.dev/vulnerability/DLA-2435-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2020-9497]
- [https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-9497.json]
[FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]