CVE-2026-90803: GNU Binutils

Affected products, as the CNA wrote them
Vendor	Product	Versions
GNU	Binutils	affected 2.47 unaffected 2.48

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.8	Medium	4.0	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	CNA (VulDB)Used for this record
5.3	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	CNA (VulDB)
5.3	Medium	3.0	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	CNA (VulDB)
4.3	Medium	2.0	AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.0020, the 10th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 14 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/vuln/403305 vdb-entrytechnical-description
vuldb.com/vuln/403305/cti signaturepermissions-required
vuldb.com/cve/CVE-2026-90803 third-party-advisory
vuldb.com/submit/920280 third-party-advisory
sourceware.org/bugzilla/show_bug.cgi?id=34444 issue-tracking
sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=471130b39c03623ec6d78ece377ff4da3f6bfe7b patch
www.gnu.org/ broken-linkproduct
github.com/r1ck9-2q/cve_summit/blob/main/Heap%20OOB%20readwrite%20and%20SEGV%20in%20%60elf_x86_64_relocate_section%60%20(bfdelf64-x86-64.c4530%20%204835)%20via%20malformed%20relocation.md exploit

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.