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Linux Distros Unpatched Vulnerability : CVE-2026-91782

🗓️ 23 Sep 2026 00:00:00Reported by TenableType 
nessus
 nessus🔗 www.tenable.com👁 6 Views

Local null pointer dereference in GNU Binutils 2.47 Dynamic Relocation Allocation.

Related
Refs
Code
ReporterTitlePublishedViews
Family
cve
CVE		CVE-2026-91782
15 Sep 202609:00
–cve
cvelist
Cvelist		CVE-2026-91782 GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null pointer dereference
15 Sep 202609:00
–cvelist
debiancve
Debian CVE		CVE-2026-91782
15 Sep 202609:00
–debiancve
euvd
EUVD		EUVD-2026-78335
15 Sep 202609:00
–euvd
nvd
NVD		CVE-2026-91782
15 Sep 202609:16
–nvd
osv
OSV		CGA-2V8M-MR6P-24VH
17 Sep 202612:58
–osv
osv
OSV		CGA-59HV-JRXX-977F
17 Sep 202613:08
–osv
osv
OSV		CGA-5WPV-9R64-4HG8
17 Sep 202612:39
–osv
osv
OSV		CGA-9M5P-JM2C-967H
17 Sep 202612:32
–osv
osv
OSV		CGA-HVJR-MJ5W-WMR8
17 Sep 202612:39
–osv
Rows per page
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# (C) Tenable, Inc.
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  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - A vulnerability was detected in GNU Binutils 2.47. Affected by this vulnerability is the function
    elf_x86_allocate_dynrelocs of the file bfd/elfxx-x86.c of the component Dynamic Relocation Allocation. The
    manipulation results in null pointer dereference. The attack requires a local approach. The exploit is now
    public and may be used. Upgrading to version 2.48 addresses this issue. The patch is identified as
    d1268210b6f6/471130b39c0/283d3198bed/0a84e560216/a692a633d40. Upgrading the affected component is
    recommended. (CVE-2026-91782)

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  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
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  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:U/RC:C");
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  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-91782");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
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  script_set_attribute(attribute:"plugin_publication_date", value:"2026/09/23");

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  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
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  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:binutils");
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if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

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          {"reference": "binutils-multiarch-dev"},
          {"reference": "binutils-powerpc64le-linux-gnu"},
          {"reference": "binutils-powerpc64le-linux-gnu-dbg"},
          {"reference": "binutils-s390x-linux-gnu"},
          {"reference": "binutils-s390x-linux-gnu-dbg"},
          {"reference": "binutils-source"},
          {"reference": "binutils-x86-64-linux-gnu"},
          {"reference": "binutils-x86-64-linux-gnu-dbg"},
          {"reference": "libbinutils"},
          {"reference": "libbinutils-dbg"},
          {"reference": "libctf-nobfd0"},
          {"reference": "libctf-nobfd0-dbg"},
          {"reference": "libctf0"},
          {"reference": "libctf0-dbg"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "binutils"},
          {"reference": "binutils-aarch64-linux-gnu"},
          {"reference": "binutils-aarch64-linux-gnu-dbg"},
          {"reference": "binutils-alpha-linux-gnu"},
          {"reference": "binutils-alpha-linux-gnu-dbg"},
          {"reference": "binutils-arc-linux-gnu"},
          {"reference": "binutils-arc-linux-gnu-dbg"},
          {"reference": "binutils-arm-linux-gnueabi"},
          {"reference": "binutils-arm-linux-gnueabi-dbg"},
          {"reference": "binutils-arm-linux-gnueabihf"},
          {"reference": "binutils-arm-linux-gnueabihf-dbg"},
          {"reference": "binutils-common"},
          {"reference": "binutils-dev"},
          {"reference": "binutils-doc"},
          {"reference": "binutils-for-build"},
          {"reference": "binutils-for-host"},
          {"reference": "binutils-hppa-linux-gnu"},
          {"reference": "binutils-hppa-linux-gnu-dbg"},
          {"reference": "binutils-hppa64-linux-gnu"},
          {"reference": "binutils-hppa64-linux-gnu-dbg"},
          {"reference": "binutils-i686-linux-gnu"},
          {"reference": "binutils-i686-linux-gnu-dbg"},
          {"reference": "binutils-multiarch"},
          {"reference": "binutils-multiarch-dbg"},
          {"reference": "binutils-multiarch-dev"},
          {"reference": "binutils-powerpc64le-linux-gnu"},
          {"reference": "binutils-powerpc64le-linux-gnu-dbg"},
          {"reference": "binutils-s390x-linux-gnu"},
          {"reference": "binutils-s390x-linux-gnu-dbg"},
          {"reference": "binutils-source"},
          {"reference": "binutils-x86-64-linux-gnu"},
          {"reference": "binutils-x86-64-linux-gnu-dbg"},
          {"reference": "libbinutils"},
          {"reference": "libbinutils-dbg"},
          {"reference": "libctf-nobfd0"},
          {"reference": "libctf-nobfd0-dbg"},
          {"reference": "libctf0"},
          {"reference": "libctf0-dbg"},
          {"reference": "libgprofng0"},
          {"reference": "libgprofng0-dbg"},
          {"reference": "libsframe1"},
          {"reference": "libsframe1-dbg"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');

var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (!empty_or_null(third_party_support)) {
    var third_party_vendors = distro_constraints_values['third_party'];
    if (!empty_or_null(third_party_vendors)) {
        var vendor;
        foreach vendor (third_party_vendors) {
            if (vendor == third_party_support) exit(0, 'A third party management patch is available for this vulnerability from ' + vendor + '.\n');
        }
    }
}

var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_NOTE,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}

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24 Sep 2026 00:00Current
4.6Medium risk
Vulners AI Score4.6
CVSS 21.7
CVSS 3.13.3
CVSS 33.3
CVSS 44.8
EPSS0.00175
SSVC
GNU Binutilself_x86_allocate_dynrelocsnull pointer dereferencelocal attack
6