CVE-2026-91780
GNU Binutils elflink.c elf_link_add_object_symbols null pointer dereference
Description
A weakness has been identified in GNU Binutils 2.47. This impacts the function elf_link_add_object_symbols of the file bfd/elflink.c. Executing a manipulation can lead to null pointer dereference. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.
INFO
Published Date :
Sept. 15, 2026, 9:16 a.m.
Last Modified :
Sept. 16, 2026, 3:28 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | LOW | [email protected] | ||||
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update GNU Binutils to the latest version.
- Apply vendor-supplied patches.
- Recompile affected components if necessary.
- Verify the fix has been applied.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-91780.
| URL | Resource |
|---|---|
| https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34447 | Third Party Advisory |
| https://sourceware.org/bugzilla/show_bug.cgi?id=34447 | Third Party Advisory |
| https://vuldb.com/cve/CVE-2026-91780 | Third Party Advisory |
| https://vuldb.com/submit/933334 | Third Party Advisory |
| https://vuldb.com/vuln/404051 | Third Party Advisory |
| https://vuldb.com/vuln/404051/cti | Permissions Required |
| https://www.gnu.org/ | Product |
| https://sourceware.org/bugzilla/show_bug.cgi?id=34447 | Third Party Advisory |
| https://vuldb.com/submit/933334 | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-91780 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-91780
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-91780 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-91780 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 16, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gnu:binutils:2.47:*:*:*:*:*:*:* Added Reference Type VulDB: https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34447 Types: Third Party Advisory Added Reference Type VulDB: https://sourceware.org/bugzilla/show_bug.cgi?id=34447 Types: Third Party Advisory Added Reference Type VulDB: https://vuldb.com/cve/CVE-2026-91780 Types: Third Party Advisory Added Reference Type VulDB: https://vuldb.com/submit/933334 Types: Third Party Advisory Added Reference Type VulDB: https://vuldb.com/vuln/404051 Types: Third Party Advisory Added Reference Type VulDB: https://vuldb.com/vuln/404051/cti Types: Permissions Required Added Reference Type VulDB: https://www.gnu.org/ Types: Product Added Reference Type CISA-ADP: https://sourceware.org/bugzilla/show_bug.cgi?id=34447 Types: Third Party Advisory Added Reference Type CISA-ADP: https://vuldb.com/submit/933334 Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 15, 2026
Action Type Old Value New Value Added Reference https://sourceware.org/bugzilla/show_bug.cgi?id=34447 Added Reference https://vuldb.com/submit/933334 Added SSVC {'id': 'CVE-2026-91780', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-15T13:57:47.282506Z'} -
New CVE Received by [email protected]
Sep. 15, 2026
Action Type Old Value New Value Added Description A weakness has been identified in GNU Binutils 2.47. This impacts the function elf_link_add_object_symbols of the file bfd/elflink.c. Executing a manipulation can lead to null pointer dereference. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a bug report but has not responded yet. Added CVSS V4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Added CVSS V2 (AV:L/AC:L/Au:S/C:N/I:N/A:P) Added CWE CWE-476 Added CWE CWE-404 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/91xxx/CVE-2026-91780.json">CVE-2026-91780</a> Added Reference https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34447 Added Reference https://sourceware.org/bugzilla/show_bug.cgi?id=34447 Added Reference https://vuldb.com/cve/CVE-2026-91780 Added Reference https://vuldb.com/submit/933334 Added Reference https://vuldb.com/vuln/404051 Added Reference https://vuldb.com/vuln/404051/cti Added Reference https://www.gnu.org/