Detections
Analytics
AlmaLinux 9 : freerdp (ALSA-2026:16482)
medium Nessus Plugin ID 315080
Synopsis
The remote AlmaLinux host is missing one or more security updates.Description
The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:16482 advisory.* freerdp: FreeRDP: Denial of service due to use-after-free vulnerability (CVE-2026-25952)
* freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect (CVE-2026-26986)
* freerdp: FreeRDP: Denial of Service via endless blocking loop in Stream_EnsureCapacity (CVE-2026-27951)
* freerdp: FreeRDP has a heap-buffer-overflow in bitmap_cache_put via OOB cacheId (CVE-2026-29775)
* freerdp: FreeRDP has an out-of-bounds read in ADPCM decoders due to missing predictor/step_index bounds checks (CVE-2026-31885)
* freerdp: FreeRDP has a division-by-zero in ADPCM decoders when `nBlockAlign` is 0 (CVE-2026-31884)
* freerdp: FreeRDP: Denial of Service via crafted audio data in RDP (CVE-2026-31883)
* FreeRDP: FreeRDP: Information disclosure via heap memory out of bounds read (CVE-2026-33985)
Tenable has extracted the preceding description block directly from the AlmaLinux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 315080
File Name: alma_linux_ALSA-2026-16482.nasl
Version: 1.1
Type: Local
Family: Alma Linux Local Security Checks
Published: 5/16/2026
Updated: 5/16/2026
Supported Sensors: Continuous Assessment, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2026-31883
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS v4
Risk Factor: Medium
Base Score: 6.9
Threat Score: 5.5
Threat Vector: CVSS:4.0/E:P
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score Source: CVE-2026-26986
Vulnerability Information
CPE: cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::resilientstorage, p-cpe:/a:alma:linux:freerdp-devel, p-cpe:/a:alma:linux:libwinpr-devel, p-cpe:/a:alma:linux:libwinpr, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:freerdp, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::nfv, p-cpe:/a:alma:linux:freerdp-libs, cpe:/o:alma:linux:9::baseos
Required KB Items: Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 5/12/2026
Vulnerability Publication Date: 2/25/2026
Reference Information
CVE: CVE-2026-25952, CVE-2026-26986, CVE-2026-27951, CVE-2026-29775, CVE-2026-31883, CVE-2026-31884, CVE-2026-31885, CVE-2026-33985