{"id":"CVE-2026-91782","state":"PUBLISHED","title":"GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null pointer dereference","description":"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.","publishedAt":"2026-09-15T09:00:14.180Z","updatedAt":"2026-09-17T14:01:21.844Z","severity":{"score":4.8,"label":"Medium","version":"4.0","vector":"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","source":"VulDB"},"assigner":"VulDB","products":["GNU Binutils"],"affected":[{"vendor":"GNU","product":"Binutils","versions":[{"version":"2.47","status":"affected"},{"version":"2.48","status":"unaffected"}],"cpes":["cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*"],"modules":["Dynamic Relocation Allocation"]}],"references":["https://vuldb.com/vuln/404053","https://vuldb.com/vuln/404053/cti","https://vuldb.com/cve/CVE-2026-91782","https://vuldb.com/submit/933335","https://sourceware.org/bugzilla/show_bug.cgi?id=34448","https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34448","https://www.gnu.org/"],"weaknesses":["CWE-476","CWE-404"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/91xxx/CVE-2026-91782.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-91782","state":"PUBLISHED","datePublished":"2026-09-15T09:00:14.180Z","dateUpdated":"2026-09-17T14:01:21.844Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-09-15T02:01:19.557Z"},"containers":{"cna":{"title":"GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null pointer dereference","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"GNU","product":"Binutils","versions":[{"version":"2.47","status":"affected"},{"version":"2.48","status":"unaffected"}],"cpes":["cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*"],"modules":["Dynamic Relocation Allocation"]}],"references":[{"url":"https://vuldb.com/vuln/404053","name":"VDB-404053 | GNU Binutils Dynamic Relocation Allocation elfxx-x86.c elf_x86_allocate_dynrelocs null pointer dereference","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/404053/cti","name":"VDB-404053 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-91782","name":"CVE-2026-91782 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/933335","name":"Submit #933335 | GNU GNU Binutils binutils 2.47 NULL Pointer Dereference","tags":["third-party-advisory"]},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=34448","tags":["broken-link","issue-tracking"]},{"url":"https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34448","tags":["exploit"]},{"url":"https://www.gnu.org/","tags":["broken-link","product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":4.8,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":3.3,"vectorString":"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","baseSeverity":"LOW"}},{"cvssV3_0":{"version":"3.0","baseScore":3.3,"vectorString":"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","baseSeverity":"LOW"}},{"cvssV2_0":{"version":"2.0","baseScore":1.7,"vectorString":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","type":"CWE","lang":"en","description":"NULL Pointer Dereference"}]},{"descriptions":[{"cweId":"CWE-404","type":"CWE","lang":"en","description":"Denial of Service"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-09-15T09:00:14.180Z"},"timeline":[{"time":"2026-09-15T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-09-15T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-09-15T04:06:36.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Ech06 (VulDB User)","type":"reporter"}],"tags":["x_open-source"],"x_generator":["VulDB PVTS v202609"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-17T14:00:57.902776Z","id":"CVE-2026-91782","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-17T14:01:21.844Z"}}]}}}