CVE-2026-91781: 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:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P	CNA (VulDB)Used for this record
3.3	Low	3.1	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	CNA (VulDB)
3.3	Low	3.0	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	CNA (VulDB)
1.7	Low	2.0	AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C	CNA (VulDB)

CISA KEV Not listed.
EPSS 0.0018, the 7th percentile, on 5 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 15 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

vuldb.com/vuln/404052 vdb-entrytechnical-description
vuldb.com/vuln/404052/cti signaturepermissions-required
vuldb.com/cve/CVE-2026-91781 third-party-advisory
vuldb.com/submit/933336 third-party-advisory
sourceware.org/bugzilla/show_bug.cgi?id=34449 issue-tracking
sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68 broken-linkpatch
www.gnu.org/ broken-linkproduct
github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449 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.