Vulnerability-Lookup

CVE-2026-4647 (GCVE-0-2026-4647)

Vulnerability from cvelistv5 – Published: 2026-03-23 13:37 – Updated: 2026-04-09 16:33

Title

Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library

Summary

A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.

Severity ?

6.1 (Medium)


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

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat

References

URL

Tags

	https://access.redhat.com/security/cve/CVE-2026-4647	vdb-entryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2450302	issue-trackingx_refsource_REDHAT
	https://sourceware.org/bugzilla/show_bug.cgi?id=33919

Impacted products

Vendor

Product

Version

Red Hat

Red Hat Enterprise Linux 10

cpe:/o:redhat:enterprise_linux:10

Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9
Red Hat	Red Hat Hardened Images	cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public ?

2026-03-23 00:00

Credits

Red Hat would like to thank Chen Zhengzhe (Hangzhou Dianzi University) for reporting this issue.

Show details on NVD website

JSON

To clipboard

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}

GHSA-V858-P3PC-HQJH

Vulnerability from github – Published: 2026-03-23 15:30 – Updated: 2026-03-23 15:30

Details

Severity ?

6.1 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-4647"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-23T14:16:36Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in the GNU Binutils BFD library, a widely used component for handling binary files such as object files and executables. The issue occurs when processing specially crafted XCOFF object files, where a relocation type value is not properly validated before being used. This can cause the program to read memory outside of intended bounds. As a result, affected tools may crash or expose unintended memory contents, leading to denial-of-service or limited information disclosure risks.",
  "id": "GHSA-v858-p3pc-hqjh",
  "modified": "2026-03-23T15:30:45Z",
  "published": "2026-03-23T15:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4647"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-4647"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2450302"
    },
    {
      "type": "WEB",
      "url": "https://sourceware.org/bugzilla/show_bug.cgi?id=33919"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

MSRC_CVE-2026-4647

Vulnerability from csaf_microsoft - Published: 2026-03-02 00:00 - Updated: 2026-03-27 01:03

Summary

Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library

Notes

Additional Resources: To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

Disclaimer: The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

CVE-2026-4647

6.1 (Medium)


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

CWE-125 - Out-of-bounds Read

None Available There is no fix available for this vulnerability as of now

References

URL

Category

	https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self
	https://support.microsoft.com/lifecycle	external
	https://www.first.org/cvss	external
	https://msrc.microsoft.com/csaf/vex/2026/msrc_cve…	self

JSON

To clipboard

{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
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    },
    "lang": "en-US",
    "notes": [
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        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
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        "category": "self",
        "summary": "CVE-2026-4647 Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library - VEX",
        "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-4647.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library",
    "tracking": {
      "current_release_date": "2026-03-27T01:03:50.000Z",
      "generator": {
        "date": "2026-03-27T07:08:42.928Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
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      "initial_release_date": "2026-03-02T00:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-03-27T01:03:50.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
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                "name": "2.0",
                "product": {
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              {
                "category": "product_version",
                "name": "3.0",
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      }
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        "full_product_name": {
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      },
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        "relates_to_product_reference": "17084"
      },
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        "category": "default_component_of",
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        "product_reference": "6",
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        "name": "Out-of-bounds Read"
      },
      "notes": [
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          "category": "general",
          "text": "redhat",
          "title": "Assigning CNA"
        }
      ],
      "product_status": {
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          "17086-4",
          "17084-3",
          "17086-5",
          "17084-2",
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        ]
      },
      "references": [
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          "category": "self",
          "summary": "CVE-2026-4647 Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library - VEX",
          "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-4647.json"
        }
      ],
      "remediations": [
        {
          "category": "none_available",
          "date": "2026-03-27T01:03:50.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
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          ]
        },
        {
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          "date": "2026-03-27T01:03:50.000Z",
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          "product_ids": [
            "17086-4"
          ]
        },
        {
          "category": "none_available",
          "date": "2026-03-27T01:03:50.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-3"
          ]
        },
        {
          "category": "none_available",
          "date": "2026-03-27T01:03:50.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17086-5"
          ]
        },
        {
          "category": "none_available",
          "date": "2026-03-27T01:03:50.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-2"
          ]
        },
        {
          "category": "none_available",
          "date": "2026-03-27T01:03:50.000Z",
          "details": "There is no fix available for this vulnerability as of now",
          "product_ids": [
            "17084-6"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "environmentalsScore": 0.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 6.1,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "17086-1",
            "17086-4",
            "17084-3",
            "17086-5",
            "17084-2",
            "17084-6"
          ]
        }
      ],
      "title": "Binutils: out-of-bounds read in xcoff relocation processing in gnu binutils bfd library"
    }
  ]
}

CNVD-2026-16063

Vulnerability from cnvd - Published: 2026-04-03

Title

GNU BinUtils缓冲区溢出漏洞（CNVD-2026-16063）

Description

GNU BinUtils是美国GNU社区的一组处理二进制文件的编程工具集合。 GNU BinUtils存在缓冲区溢出漏洞，该漏洞源于处理特制XCOFF对象文件时未正确验证重定位类型值，攻击者可利用该漏洞导致越界读取内存、程序崩溃或信息泄露。

Severity

中

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://access.redhat.com/security/cve/CVE-2026-4647

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-4647

Impacted products

Name
GNU Binutils

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-4647",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-4647"
    }
  },
  "description": "GNU BinUtils\u662f\u7f8e\u56fdGNU\u793e\u533a\u7684\u4e00\u7ec4\u5904\u7406\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u7f16\u7a0b\u5de5\u5177\u96c6\u5408\u3002\n\nGNU BinUtils\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5904\u7406\u7279\u5236XCOFF\u5bf9\u8c61\u6587\u4ef6\u65f6\u672a\u6b63\u786e\u9a8c\u8bc1\u91cd\u5b9a\u4f4d\u7c7b\u578b\u503c\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8d8a\u754c\u8bfb\u53d6\u5185\u5b58\u3001\u7a0b\u5e8f\u5d29\u6e83\u6216\u4fe1\u606f\u6cc4\u9732\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-16063",
  "openTime": "2026-04-03",
  "products": {
    "product": "GNU Binutils"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-4647",
  "serverity": "\u4e2d",
  "submitTime": "2026-03-26",
  "title": "GNU BinUtils\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2026-16063\uff09"
}

FKIE_CVE-2026-4647

Vulnerability from fkie_nvd - Published: 2026-03-23 14:16 - Updated: 2026-03-24 19:02

Severity ?

6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
6.1 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Summary

References

URL	Tags
secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-4647	Mitigation, Vendor Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2450302	Issue Tracking, Vendor Advisory
secalert@redhat.com	https://sourceware.org/bugzilla/show_bug.cgi?id=33919	Broken Link

Impacted products

Vendor	Product	Version
gnu	binutils	-
redhat	openshift_container_platform	4.0
redhat	enterprise_linux	6.0
redhat	enterprise_linux	7.0
redhat	enterprise_linux	8.0
redhat	enterprise_linux	9.0
redhat	enterprise_linux	10.0

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:gnu:binutils:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "70CA109B-85B9-4EF2-9A5F-A7D12F6EA878",
              "vulnerable": true
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    },
    {
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  ],
  "id": "CVE-2026-4647",
  "lastModified": "2026-03-24T19:02:03.457",
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  "vulnStatus": "Analyzed",
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CVE-2026-4647 (GCVE-0-2026-4647)

GHSA-V858-P3PC-HQJH

MSRC_CVE-2026-4647

CNVD-2026-16063

FKIE_CVE-2026-4647

Tags

Sightings

Nomenclature