Medium severity4.4OSV Advisory· Published Jul 2, 2020· Updated Jun 17, 2026
CVE-2020-9497
CVE-2020-9497
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
80.8.2, 0.8.3, 0.9.0, …+ 2 more
- (no CPE)range: 0.8.2, 0.8.3, 0.9.0, …
- cpe:2.3:a:apache:guacamole:*:*:*:*:*:*:*:*range: <=1.1.0
- (no CPE)range: <=1.1.0
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- osv-coords2 versions
< 1.1.0+ 1 more
- (no CPE)range: < 1.1.0
- (no CPE)range: < 1.1.0
Patches
Vulnerability mechanics
References
11- kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44525nvdThird Party Advisory
- lists.apache.org/thread.html/r65f75d3d65d1af68141f42071ebb27dda24af3e45570e593c1dbd81f%40%3Cannounce.guacamole.apache.org%3EnvdMailing ListVendor Advisory
- lists.debian.org/debian-lts-announce/2020/11/msg00010.htmlnvdMailing ListThird Party Advisory
- research.checkpoint.com/2020/apache-guacamole-rce/nvdThird Party Advisory
- lists.apache.org/thread.html/r066543f0565e97b27c0dfe27e93e8a387b99e1e35764000224ed96e7%40%3Cuser.guacamole.apache.org%3Envd
- lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7%40%3Cannounce.apache.org%3Envd
- lists.apache.org/thread.html/r181b1d5b1acb31cfa69f41b2c86ed3a2cb0b5bc09c2cbd31e9e7c847%40%3Cuser.guacamole.apache.org%3Envd
- lists.apache.org/thread.html/r3f071de70ea1facd3601e0fa894e6cadc960627ee7199437b5a56f7f%40%3Cannounce.apache.org%3Envd
- lists.apache.org/thread.html/r90890afea72a9571d666820b2fe5942a0a5f86be406fa31da3dd0922%40%3Cannounce.apache.org%3Envd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TVV5K2X4EXSAVUUL7IJ3MUJ3ADWMVSBM/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNS7UHBOFV6JHWH5XOEZTE3BREGRSSQ3/nvd
News mentions
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