Red Hat Security Advisory: freerdp security update
Multiple vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol used by clients such as xfreerdp. These include denial of service issues caused by use-after-free, double free, endless blocking loops, and crafted audio data, as well as memory safety issues like heap-buffer-overflow, out-of-bounds reads, and division-by-zero errors. An information disclosure vulnerability via heap memory out-of-bounds read is also present. These issues affect various Red Hat Enterprise Linux 9. 4 Extended Update Support versions and related products. Red Hat has released security updates addressing these vulnerabilities.
AI Analysis
Technical Summary
FreeRDP, an open-source RDP client, contains multiple security vulnerabilities including denial of service from use-after-free (CVE-2026-25952), double free during disconnect (CVE-2026-26986), endless blocking loop in Stream_EnsureCapacity (CVE-2026-27951), heap-buffer-overflow via out-of-bounds cacheId (CVE-2026-29775), out-of-bounds read in ADPCM decoders due to missing bounds checks (CVE-2026-31885), division-by-zero in ADPCM decoders when nBlockAlign is zero (CVE-2026-31884), denial of service via crafted audio data (CVE-2026-31883), and information disclosure via heap memory out-of-bounds read (CVE-2026-33985). These vulnerabilities have been fixed in updated packages for Red Hat Enterprise Linux 9.4 Extended Update Support and related variants.
Potential Impact
The vulnerabilities can lead to denial of service conditions through memory corruption and logic errors, potentially causing application crashes or hangs. The information disclosure vulnerability may allow unauthorized reading of heap memory beyond intended boundaries. No known exploits in the wild have been reported. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated freerdp packages for affected Red Hat Enterprise Linux 9.4 Extended Update Support and related products that address these vulnerabilities. Users should apply these official security updates promptly. For detailed update instructions, refer to the Red Hat advisory RHSA-2026:16866 and the article 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 vulnerabilities have been identified in FreeRDP, a free implementation of the Remote Desktop Protocol used by clients such as xfreerdp. These include denial of service issues caused by use-after-free, double free, endless blocking loops, and crafted audio data, as well as memory safety issues like heap-buffer-overflow, out-of-bounds reads, and division-by-zero errors. An information disclosure vulnerability via heap memory out-of-bounds read is also present. These issues affect various Red Hat Enterprise Linux 9. 4 Extended Update Support versions and related products. Red Hat has released security updates addressing these vulnerabilities.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP, an open-source RDP client, contains multiple security vulnerabilities including denial of service from use-after-free (CVE-2026-25952), double free during disconnect (CVE-2026-26986), endless blocking loop in Stream_EnsureCapacity (CVE-2026-27951), heap-buffer-overflow via out-of-bounds cacheId (CVE-2026-29775), out-of-bounds read in ADPCM decoders due to missing bounds checks (CVE-2026-31885), division-by-zero in ADPCM decoders when nBlockAlign is zero (CVE-2026-31884), denial of service via crafted audio data (CVE-2026-31883), and information disclosure via heap memory out-of-bounds read (CVE-2026-33985). These vulnerabilities have been fixed in updated packages for Red Hat Enterprise Linux 9.4 Extended Update Support and related variants.
Potential Impact
The vulnerabilities can lead to denial of service conditions through memory corruption and logic errors, potentially causing application crashes or hangs. The information disclosure vulnerability may allow unauthorized reading of heap memory beyond intended boundaries. No known exploits in the wild have been reported. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated freerdp packages for affected Red Hat Enterprise Linux 9.4 Extended Update Support and related products that address these vulnerabilities. Users should apply these official security updates promptly. For detailed update instructions, refer to the Red Hat advisory RHSA-2026:16866 and the article 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-2026:16866
- Cve Count
- 8
- Additional Cves
- ["CVE-2026-26986","CVE-2026-27951","CVE-2026-29775","CVE-2026-31883","CVE-2026-31884","CVE-2026-31885","CVE-2026-33985"]
- Cvss Version
- null
Threat ID: 6a16097ee29bf47b5064afb0
Added to database: 5/26/2026, 8:58:38 PM
Last enriched: 5/26/2026, 10:35:47 PM
Last updated: 5/27/2026, 4:54:11 AM
Views: 2
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