Vulnerability-Lookup

RHSA-2026:50747

Vulnerability from csaf_opensuse - Published: 2026-08-05 00:00 - Updated: 2026-09-16 18:42

Summary

security update for freerdp

Severity

Important

Notes

Title of the patch: security update for freerdp

Description of the patch: This security update provides a functional equivalent of RHSA-2026:50747. The original Red Hat(R) advisory is available from the Red Hat web site at https://access.redhat.com/errata/RHSA-2026:50747.

Patchnames: RHSA-2026:50747

CVE-2026-55827

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

Recommended 6 products

Product	Version	Remediation
Unresolved product id: SUSE Liberty Linux 10:freerdp-2:3.10.3-12.el10_2.7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 10:freerdp-devel-2:3.10.3-12.el10_2.7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 10:freerdp-libs-2:3.10.3-12.el10_2.7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 10:freerdp-server-2:3.10.3-12.el10_2.7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 10:libwinpr-2:3.10.3-12.el10_2.7.x86_64	—	Vendor Fix
Unresolved product id: SUSE Liberty Linux 10:libwinpr-devel-2:3.10.3-12.el10_2.7.x86_64	—	Vendor Fix

Threats

Impact important

References

7 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/r…	self
https://lists.suse.com/pipermail/suse-liberty-lin…	self
https://lists.suse.com/pipermail/suse-liberty-lin…	self
https://www.suse.com/security/cve/CVE-2026-55827/	self
https://www.suse.com/security/cve/CVE-2026-55827	external
https://bugzilla.suse.com/1271302	external

JSON

To clipboard

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          "date": "2026-08-05T00:00:00Z",
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      "title": "CVE-2026-55827"
    }
  ]
}

CVE-2026-55827 (GCVE-0-2026-55827)

Vulnerability from cvelistv5 – Published: 2026-07-10 19:47 – Updated: 2026-07-15 03:58

Title

FreeRDP: Heap out-of-bounds write in RemoteFX (RFX) Cache Bitmap V3 decode

Summary

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.1, FreeRDP clients launched with the non-default /cache:codec:rfx option pass desktop stride and height to RemoteFX decoding for Cache Bitmap V3 data while allocating bitmap->data only for the smaller DstWidth and DstHeight in gdi_Bitmap_Decompress, allowing a malicious RDP server to trigger a heap out-of-bounds write with attacker-controlled offset and content. This issue is fixed in version 3.27.1.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-14 00:00 UTC

CWE

CWE-131 - Incorrect Calculation of Buffer Size
CWE-787 - Out-of-bounds Write

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/FreeRDP/FreeRDP/security/advis…	x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/pull/12899	x_refsource_MISC
https://github.com/FreeRDP/FreeRDP/commit/e58adf9…	x_refsource_MISC
https://github.com/FreeRDP/FreeRDP/releases/tag/3.27.1	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
FreeRDP	FreeRDP	Affected: < 3.27.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-55827",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-14T00:00:00+00:00",
                "version": "2.0.3"
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              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-15T03:58:59.199Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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            "tags": [
              "exploit"
            ],
            "url": "https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c495-h83v-3prp"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "FreeRDP",
          "vendor": "FreeRDP",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.27.1"
            }
          ]
        }
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          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
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          }
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              "lang": "en",
              "type": "CWE"
            }
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        {
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              "description": "CWE-787: Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-10T19:47:03.498Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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        },
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      "source": {
        "advisory": "GHSA-c495-h83v-3prp",
        "discovery": "UNKNOWN"
      },
      "title": "FreeRDP: Heap out-of-bounds write in RemoteFX (RFX) Cache Bitmap V3 decode"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-55827",
    "datePublished": "2026-07-10T19:47:03.498Z",
    "dateReserved": "2026-06-17T16:29:38.864Z",
    "dateUpdated": "2026-07-15T03:58:59.199Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.