CVE-2026-90830
GNU Binutils Section Merge merge.c _bfd_write_merged_section null pointer dereference
Description
A security vulnerability has been detected in GNU Binutils 2.47. Impacted is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through a bug report but has not responded yet.
INFO
Published Date :
Sept. 14, 2026, 11:18 p.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 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Update GNU Binutils to the latest version.
- Apply any available security patches.
- Monitor vendor advisories for fixes.
- Review section merge function code.
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-2026-90830.
| URL | Resource |
|---|---|
| https://sourceware.org/bugzilla/attachment.cgi?id=16884 | Third Party Advisory Issue Tracking |
| https://sourceware.org/bugzilla/show_bug.cgi?id=34452 | Third Party Advisory Issue Tracking |
| https://vuldb.com/cve/CVE-2026-90830 | Third Party Advisory |
| https://vuldb.com/submit/925229 | Third Party Advisory |
| https://vuldb.com/vuln/403332 | Third Party Advisory |
| https://vuldb.com/vuln/403332/cti | Permissions Required |
| https://www.gnu.org/ | Product |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-90830 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-2026-90830
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-2026-90830 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-90830 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://sourceware.org/bugzilla/attachment.cgi?id=16884 Types: Issue Tracking, Third Party Advisory Added Reference Type VulDB: https://sourceware.org/bugzilla/show_bug.cgi?id=34452 Types: Issue Tracking, Third Party Advisory Added Reference Type VulDB: https://vuldb.com/cve/CVE-2026-90830 Types: Third Party Advisory Added Reference Type VulDB: https://vuldb.com/submit/925229 Types: Third Party Advisory Changed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://sourceware.org/bugzilla/attachment.cgi?id=16884 Types: Issue Tracking nvd-ai-agent-0.3.0-gemma-4-31B-it: https://sourceware.org/bugzilla/attachment.cgi?id=16884 Types: Issue Tracking, Third Party Advisory Changed Reference Type nvd-ai-agent-0.3.0-gemma-4-31B-it: https://sourceware.org/bugzilla/show_bug.cgi?id=34452 Types: Issue Tracking, Vendor Advisory nvd-ai-agent-0.3.0-gemma-4-31B-it: https://sourceware.org/bugzilla/show_bug.cgi?id=34452 Types: Issue Tracking, Third Party Advisory, Vendor Advisory Added Reference Type VulDB: https://vuldb.com/vuln/403332 Types: Third Party Advisory Added Reference Type VulDB: https://vuldb.com/vuln/403332/cti Types: Permissions Required Added Reference Type VulDB: https://www.gnu.org/ Types: Product -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 15, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-90830', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-15T19:10:51.266938Z'} -
New CVE Received by [email protected]
Sep. 14, 2026
Action Type Old Value New Value Added Description A security vulnerability has been detected in GNU Binutils 2.47. Impacted is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. 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:L/VI:L/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:L/I:L/A:L Added CVSS V2 (AV:L/AC:L/Au:S/C:P/I:P/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/2026/90xxx/CVE-2026-90830.json">CVE-2026-90830</a> Added Reference https://sourceware.org/bugzilla/attachment.cgi?id=16884 Added Reference https://sourceware.org/bugzilla/show_bug.cgi?id=34452 Added Reference https://vuldb.com/cve/CVE-2026-90830 Added Reference https://vuldb.com/submit/925229 Added Reference https://vuldb.com/vuln/403332 Added Reference https://vuldb.com/vuln/403332/cti Added Reference https://www.gnu.org/