Security readout for executives and security teams
Plain-English summary
CVE-2022-24882 is a critical authentication flaw in FreeRDP before 2.7.0. FreeRDP-based RDP servers could mishandle NTLM authentication when an empty password is supplied. RDP clients are not affected. The vendor patch is FreeRDP 2.7.0, and the sources state there are no known workarounds.
Executive priority
Treat this as urgent for any FreeRDP-based RDP server, especially if exposed beyond trusted networks. The business concern is authentication bypass risk, not general RDP client use.
Technical view
Server-side NTLM handling in FreeRDP before 2.7.0 did not properly abort on an empty password value. The CVSS 3.1 score is 9.1 with network attack vector, no privileges, and no user interaction. The affected scope is FreeRDP-based RDP server implementations, not clients.
Likely exposure
Exposure is most likely where FreeRDP before 2.7.0 is used to provide an RDP server, including downstream Linux package deployments. Generic RDP clients alone are not indicated as affected by the sources.
Exploitation context
The source bundle does not show CISA KEV listing or confirmed active exploitation. The risk is still high because the issue is remotely reachable, unauthenticated, and affects authentication integrity on server implementations.
Researcher notes
Evidence is strongest for FreeRDP before 2.7.0 and server-side NTLM handling. Sources do not provide confirmed exploitation or a workaround. Downstream advisories indicate Linux distributions shipped updates, but affected package versions should be verified per vendor.
Mitigation direction
- Upgrade FreeRDP to 2.7.0 or a vendor-fixed package.
- Prioritize internet-exposed FreeRDP-based RDP servers first.
- Use Fedora, Gentoo, Debian, or other vendor advisories for packaged builds.
- Restrict network access to affected RDP server services until patched.
- Do not rely on a workaround; sources state none are known.
Validation and detection
- Inventory FreeRDP versions in server-side RDP deployments.
- Verify deployed FreeRDP is 2.7.0 or vendor-patched.
- Confirm whether any product embeds FreeRDP server functionality.
- Separate RDP clients from server implementations during triage.
- In a controlled environment, confirm empty-password NTLM authentication is rejected.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-24882 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
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A: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.
CVSS vector scores
1 official scoreWe 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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N3.95.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/FreeRDP/FreeRDP/releases/tag/2.7.0CVE reference
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-6x5p-gp49-3jhhCVE reference
- https://github.com/FreeRDP/FreeRDP/pull/7750CVE reference
- https://gitlab.gnome.org/GNOME/gnome-remote-desktop/-/issues/95CVE reference
- FEDORA-2022-dc48a89918CVE reference · vendor-advisory
- FEDORA-2022-a3e03a200bCVE reference · vendor-advisory
- FEDORA-2022-b0a47f8060CVE reference · vendor-advisory
- GLSA-202210-24CVE reference · vendor-advisory
- https://lists.debian.org/debian-lts-announce/2025/02/msg00034.htmlCVE reference
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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.