Red Hat Security Advisory: freerdp security update
Multiple heap and global buffer overflow vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol client. These vulnerabilities affect the xfreerdp client used to connect to various RDP servers. Red Hat has issued an important security advisory for Red Hat Enterprise Linux 8.4 addressing these issues with updated freerdp packages.
AI Analysis
Technical Summary
The security advisory addresses three vulnerabilities in FreeRDP: CVE-2026-22855 and CVE-2026-22859 are heap-buffer-overflow flaws, and CVE-2026-22858 is a global-buffer-overflow flaw. These vulnerabilities could potentially lead to memory corruption issues. The affected product is Red Hat Enterprise Linux 8.4, specifically the freerdp packages included in this distribution. Red Hat has released updated packages to fix these vulnerabilities as part of their Extended Life Cycle Long Life 8.4 and AUS 8.4 support streams.
Potential Impact
The vulnerabilities involve heap and global buffer overflows, which can lead to memory corruption. Such issues may allow an attacker to cause application crashes or potentially execute arbitrary code if exploited. The advisory rates the security impact as Important (high severity). There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated freerdp packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 8.4 should apply the security update as described in the Red Hat advisory RHSA-2026:4439. Detailed instructions for applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: freerdp security update
Description
Multiple heap and global buffer overflow vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol client. These vulnerabilities affect the xfreerdp client used to connect to various RDP servers. Red Hat has issued an important security advisory for Red Hat Enterprise Linux 8.4 addressing these issues with updated freerdp packages.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The security advisory addresses three vulnerabilities in FreeRDP: CVE-2026-22855 and CVE-2026-22859 are heap-buffer-overflow flaws, and CVE-2026-22858 is a global-buffer-overflow flaw. These vulnerabilities could potentially lead to memory corruption issues. The affected product is Red Hat Enterprise Linux 8.4, specifically the freerdp packages included in this distribution. Red Hat has released updated packages to fix these vulnerabilities as part of their Extended Life Cycle Long Life 8.4 and AUS 8.4 support streams.
Potential Impact
The vulnerabilities involve heap and global buffer overflows, which can lead to memory corruption. Such issues may allow an attacker to cause application crashes or potentially execute arbitrary code if exploited. The advisory rates the security impact as Important (high severity). There are no known exploits in the wild at the time of the advisory.
Mitigation Recommendations
Red Hat has released updated freerdp packages that address these vulnerabilities. Users of Red Hat Enterprise Linux 8.4 should apply the security update as described in the Red Hat advisory RHSA-2026:4439. Detailed instructions for applying the update are available at https://access.redhat.com/articles/11258. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:4439
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-22858","CVE-2026-22859"]
Threat ID: 6a27e9928dd33fbd8516a215
Added to database: 06/09/2026, 10:23:14 UTC
Last enriched: 08/18/2026, 13:58:06 UTC
Last updated: 09/14/2026, 10:01:29 UTC
Views: 68
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