Intel

CVE-2026-57156

ubuntu freerdp3: Heap-basierter Pufferueberlauf

criticalEPSS 0.7%

Affected

  • ubuntu/freerdp3 3.30.0+dfsg-0ubuntu0.24.04.1..*
  • ubuntu/freerdp3 3.30.0+dfsg-0ubuntu0.26.04.1..*

Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), allowing a malicious RDP peer to allocate an undersized heap buffer and then write beyond it during initialization. This issue is fixed in version 3.28.0.

Source: suse_csafUbuntu Security NoticesBSI WID PortalBSI CSAFNVD (NIST)CVE.org (MITRE)cvelistv5

Affected operating systems

  • linux

    ubuntu / freerdp3noble

  • linux

    ubuntu / freerdp3resolute

Metrics

XIEM Effective CVSS
9.8
Source: nvd-v3
EPSS percentile
51.7 %
High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status
—
Show all metrics
Severity
critical
Priority score
92.25
Exploit maturity
no public PoC known
CVSS v3
9.8
CVSS v4
8.6
EPSS score
0.7 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-07-10 20:16 UTC
CWE
CWE-122, CWE-190

Weakness classes (CWE)

  • CWE-122Variant

    Heap-based Buffer Overflow

    A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

    cwe.mitre.org →

  • CWE-190Base

    Integer Overflow or Wraparound

    The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

    cwe.mitre.org →

References & sources

Linked advisories