[UPDATE] [medium] FreeRDP: Multiple vulnerabilities
A remote, anonymous attacker can exploit multiple vulnerabilities in FreeRDP to potentially execute arbitrary code, cause a denial-of-service condition, manipulate data, disclose confidential information, or conduct other unspecified attacks.
CSIRTS triage
- What
- A remote, anonymous attacker can exploit multiple vulnerabilities in FreeRDP to potentially execute arbitrary code, cause a denial-of-service condition, manipulate data, disclose confidential information, or conduct other unspecified attacks.
- Who is affected
- Deployments of FreeRDP are affected.
- Urgency
- Remediation is medium urgency due to the potential for serious exploitation.
- Action
- Apply the latest updates for FreeRDP to mitigate these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0880
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-339520.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 19% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339770.26% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 17% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339820.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339830.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339840.40% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 33% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339850.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 10% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339860.27% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 18% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339870.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
- Low exploitation riskCVE-2026-339950.28% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-33952 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33977 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33982 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33983 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33984 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33985 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33986 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33987 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33995 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for FreeRDP
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- high[NEW] [high] FreeRDP: Multiple vulnerabilitiescert-bund · 2026-08-24
- medium[NEW] [medium] FreeRDP: Multiple vulnerabilitiescert-bund · 2026-08-24
- high[UPDATE] [high] FreeRDP: Multiple vulnerabilitiescert-bund · 2026-08-20
- unknownCVE-2026-63652: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, rdpsnd_serve…nvd · 2026-08-19
- unknownCVE-2026-63633: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, freerdp_dsp_…nvd · 2026-08-19
- mediumCVE-2026-63117: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, an authentic…nvd · 2026-08-19
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