GNU Binutils Section Merge merge.c _bfd_write_merged_section null pointer dereference

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-90830
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-14 23:18:59 UTC
Updated2026-09-16 15:28:03 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 1.9 LOW from [email protected]

CVSS:4.0/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

EPSS: 0.001520000 probability, percentile 0.047110000 (date 2026-09-16)

Problem Types: CWE-404 | CWE-476 | CWE-476 NULL Pointer Dereference | CWE-404 Denial of Service

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary1.9LOWCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED4.8MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
3.0CNADECLARED5.3MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
2.0[email protected]Secondary4.3AV:L/AC:L/Au:S/C:P/I:P/A:P
2.0CNADECLARED4.3AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/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

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gnu Binutils 2.47 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GNU Binutils affected 2.47 Not specified

References

ReferenceSourceLinkTags
vuldb.com/cve/CVE-2026-90830 [email protected] vuldb.com Third Party Advisory
sourceware.org/bugzilla/attachment.cgi [email protected] sourceware.org Third Party Advisory, Issue Tracking
vuldb.com/vuln/403332 [email protected] vuldb.com Third Party Advisory
vuldb.com/submit/925229 [email protected] vuldb.com Third Party Advisory
vuldb.com/vuln/403332/cti [email protected] vuldb.com Permissions Required
www.gnu.org [email protected] www.gnu.org Product
sourceware.org/bugzilla/show_bug.cgi [email protected] sourceware.org Third Party Advisory, Issue Tracking
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: wsstssw (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-13T00:00:00.000ZAdvisory disclosed
CNA2026-09-13T02:00:00.000ZVulDB entry created
CNA2026-09-13T21:26:47.000ZVulDB entry last update

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