CVE-2026-91782 (GCVE-0-2026-91782)

Vulnerability from cvelistv5 – Published: 2026-09-15 09:00 – Updated: 2026-09-17 14:01 X_Open Source
VLAI
Title
GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null pointer dereference
Summary
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.
Severity
4.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-17 14:00 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 83/100 over 3802 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/404053 vdb-entrytechnical-description
https://vuldb.com/vuln/404053/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-91782 third-party-advisory
https://vuldb.com/submit/933335 third-party-advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=34448 broken-linkissue-tracking
https://github.com/Ech06/CVE_submit/tree/main/bug… exploit
https://www.gnu.org/ broken-linkproduct
Impacted products
Vendor Product Version CPE status
GNU Binutils Affected: 2.47
Unaffected: 2.48
    cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Ech06 (VulDB User)
Show details on NVD website
To clipboard 

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              "tags": [
                "broken-link",
                "product"
              ],
              "url": "https://www.gnu.org/"
            }
          ],
          "tags": [
            "x_open-source"
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-09-15T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-09-15T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-09-15T04:06:36.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null pointer dereference",
          "x_generator": [
            "VulDB PVTS v202609"
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-91782",
        "datePublished": "2026-09-15T09:00:14.180Z",
        "dateReserved": "2026-09-15T02:01:19.557Z",
        "dateUpdated": "2026-09-17T14:01:21.844Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.
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  • 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.
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    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.