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Vulnerabilities

Vulnerability · CVE-2026-111881

FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte image

Published Oct 17, 2026 · catalog updated Oct 18, 2026 · FreeRDP from 3.14.1 before

Open the advisory

Exploitation likelihood is not on this record for CVE-2026-111881. A missing EPSS score is not a low risk. Compare FreeRDP from 3.14.1 before with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (FreeRDP from 3.14.1 before).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
High7.2
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Not in the current FIRST EPSS dataset
Remediation
Advisory link
Affected products
Debian:12 freerdp2 · Debian:13 freerdp3 · Debian:14 freerdp3

FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 freerdp22.10.0+dfsg1-1, 2.10.0+dfsg1-1.1, 2.11.2+dfsg1-1
  • Debian:13 freerdp33.15.0+dfsg-2.1, 3.15.0+dfsg-2.1+deb13u1, 3.15.0+dfsg-2.1+deb13u2
  • Debian:14 freerdp30 → 3.32.0+dfsg-1

How to fix CVE-2026-111881

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2026-111881. A missing EPSS score is not a low risk. Compare FreeRDP from 3.14.1 before with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 2.10.0+dfsg1-1, 2.10.0+dfsg1-1.1, 2.11.2+dfsg1-1, 3.15.0+dfsg-2.1, 3.15.0+dfsg-2.1+deb13u1, 3.15.0+dfsg-2.1+deb13u2, 0 → 3.32.0+dfsg-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-191: Integer Underflow. EPSS is absent from the current FIRST dataset. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 17, 2026 · NIST NVD

    Detected

    FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write.

  2. Oct 18, 2026 · Trivy Vulnerability DB

    Fix available

    freerdp3 fixed in 3.32.0+dfsg-1

  3. Oct 18, 2026 · Trivy Vulnerability DB

    Fix available

    freerdp3 fixed in 3.32.0+dfsg-1

  4. Oct 18, 2026 · Trivy Vulnerability DB

    Updated

    FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write.

Sources

  • CVE.orgVulnerability recordCVE-2026-111881

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-111881

    FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_i

    nvd.nist.gov
  • OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-111881
    osv.dev
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-111881

    FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_i

    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.