Security readout for executives and security teams
Plain-English summary
FreeRDP before 3.22.0 can crash or become unstable because a capture thread may keep using a callback after a device channel has closed. The published severity is high because exploitation is network-reachable and requires no authentication or user interaction, but the provided sources do not show active exploitation.
Executive priority
Treat this as a high-priority patching item for environments using FreeRDP. The main business risk is service disruption or client instability from a memory-safety flaw, not confirmed data theft or active exploitation based on the supplied evidence.
Technical view
This is a heap use-after-free in FreeRDP's cam_v4l_stream_capture_thread path. After device channel close, sample responses may be sent through a freed channel callback, reaching ecam_channel_write. The issue is tracked as CWE-416 and CWE-825 and is fixed upstream in FreeRDP 3.22.0.
Likely exposure
Systems are likely exposed if they run FreeRDP versions earlier than 3.22.0, including vendor-packaged builds unless backported fixes apply. Exposure should be checked wherever FreeRDP is installed directly, embedded in tooling, or shipped in Linux packages.
Exploitation context
The CVSS 4.0 vector indicates network attack, low complexity, no privileges, and no user interaction, with high availability impact. KEV is false in the bundle, and no supplied source states exploitation in the wild.
Researcher notes
The strongest evidence is the upstream advisory, the fixing commit, and Red Hat tracking. The bundle does not provide proof-of-concept details, exploit telemetry, or affected downstream product lists beyond FreeRDP before 3.22.0.
Mitigation direction
- Upgrade FreeRDP to 3.22.0 or later.
- Apply vendor security updates where FreeRDP is packaged by an OS distribution.
- Review Red Hat advisories for package-specific fixed builds.
- If upgrade timing is uncertain, check vendor guidance for supported mitigations.
- Track dependent products or containers that bundle FreeRDP.
Validation and detection
- Inventory installed FreeRDP versions across endpoints, servers, images, and build dependencies.
- Confirm every affected instance is 3.22.0 or carries a vendor backport.
- Map Red Hat systems against RHSA-2026:4121, RHSA-2026:3068, and RHSA-2026:19033.
- Verify vulnerability scanners recognize fixed vendor package revisions.
- Record exceptions where FreeRDP is present but not affected by vendor VEX status.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-416: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-825: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-24678 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——GitHub_MCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L3.91.4redhat-SADPVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- CVE publishedCVE Program
The CVE record was published.
- ADP timelineredhat-SADP
Reported to Red Hat.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-02-09T20:01:06.670Z: Reported to Red Hat.
- 2026-02-09T18:17:27.040Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6gvg-29wx-6v7hCVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/FreeRDP/FreeRDP/commit/f3ab1a16139036179d9852745fdade18fec11600CVE reference, GitHub_M · x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2026-24678CVE reference, redhat-SADP · vdb-entry, x_refsource_REDHAT
- RHBZ#2438197CVE reference, redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24678.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
- https://access.redhat.com/errata/RHSA-2026:4121CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:3068CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2026:19033CVE reference, redhat-SADP · vendor-advisory, x_refsource_REDHAT
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Expired Pointer Dereference
Expired Pointer Dereference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.