ZeroDay Findings
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-111880

FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset.

Published Oct 17, 2026 · catalog updated Oct 18, 2026 · FreeRDP versions from 2.0.0

Open the advisory

Exploitation likelihood is not on this record for CVE-2026-111880. A missing EPSS score is not a low risk. Compare FreeRDP versions from 2.0.0 with the linked advisory before you change production.

Severity
High8.3
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 versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.

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-2026-111880

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-2026-111880. A missing EPSS score is not a low risk. Compare FreeRDP versions from 2.0.0 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-787: Out-of-bounds Write. 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 versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.

  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 versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation.

Sources

  • CVE.orgVulnerability recordCVE-2026-111880

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-111880

    FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 1

    nvd.nist.gov
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-111880

    FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 1

    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.