Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnects to a malicious or compromised RDP server, a series ofspecially-crafted PDUs could result in memory corruption, possiblyallowing arbitrary code to be executed with the privileges of therunning guacd process.
Published 2020-07-02 13:15:11
Updated 2021-07-21 11:39:24
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2020-9498

Exploit prediction scoring system (EPSS) score for CVE-2020-9498

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-9498

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.2
MEDIUM AV:L/AC:H/Au:N/C:C/I:C/A:C
1.9
10.0
NIST
6.7
MEDIUM CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
0.8
5.9
NIST

CWE ids for CVE-2020-9498

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-9498

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