FreeRDP before 3.28.0 treats lines beginning with forward slash in RDP files as raw command-line options, exposing the entire CLI parser surface to untrusted files. Attackers can craft malicious RDP files with /rdp2tcp, /cert:ignore, or /drive options to execute arbitrary commands, bypass certificate validation, or expose local filesystems without user interaction.
CVE-2026-64624
This high-severity CVE scores 7.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 91% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity78% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 8.9%
- KEV
- Not listed
Published
July 20, 2026
Last Modified
July 23, 2026
Advisory Details (2)
Auto-updated Jul 20, 2026FreeRDP RDP File Parser Remote Code Execution via CLI Options | Advisories | VulnCheck
https://www.vulncheck.com/advisories/freerdp-rdp-file-parser-remote-code-execution-via-cli-optionsUndocumented `/`-option lines in a `.rdp` file grant the full client CLI from an untrusted file (`/cert:ignore`, `/drive`, `/rdp2tcp` command execution) · Advisory · FreeRDP/FreeRDP · GitHub
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-rq8f-9xjh-pr3mVendor Advisories for CVE-2026-64624(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 12× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-24 14:18 UTCEPSS rescore
- 2026-07-24 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:22 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:25 UTCEPSS rescore
- 2026-07-21 15:25 UTCEPSS rescore
- 2026-07-20 22:42 UTCEG score recompute
- 2026-07-20 22:12 UTCEG score recompute
- 2026-07-20 22:12 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-88
- CVE-2018-3856EG 9.9CRITICAL
- CVE-2020-28026EG 9.8EPSS 95%CRITICAL
- CVE-2020-21224EG 9.8EPSS 98%CRITICAL
- CVE-2020-25494EG 9.8EPSS 98%CRITICAL
- CVE-2020-5648EG 9.8CRITICAL
- CVE-2020-15692EG 9.8EPSS 90%CRITICAL
- CVE-2020-5599EG 9.8CRITICAL
- CVE-2020-12641EG 9.8 KEVEPSS 100%CRITICAL
- CVE-2019-12148EG 9.8CRITICAL
- CVE-2019-12147EG 9.8CRITICAL
Frequently asked(5)
What is CVE-2026-64624?
When was CVE-2026-64624 disclosed?
Is CVE-2026-64624 actively exploited?
What is the CVSS score of CVE-2026-64624?
How do I remediate CVE-2026-64624?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-64624
Is Your Infrastructure Affected by CVE-2026-64624?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.