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Vulnerability record · CVE-2026-90801 · published 14 September 2026

CVE-2026-90801: Gnu binutils memory buffer overflow vulnerability

Gnu · Binutils

A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.

1.9 CVSS 4.0 Low EPSS 0.21% · top 90.3% CWE-119 · Memory buffer overflowCWE-120 · Classic buffer overflow
1.9CVSS 4.0 base score, v2 4.3
0.21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 2 tagged exploit
18 Sep 2026Last modified by NVD

Description

A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local approach. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.

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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/r1ck9-2q/cve_summit/blob/main/Heap-buffer-overflow%20in%20%60cache_bwrite%60%20(bfdcache.c436)%20via% ExploitMitigationThird Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=34442 ExploitThird Party Advisory
https://vuldb.com/cve/CVE-2026-90801 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/submit/920276 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/403303 Permissions RequiredThird Party AdvisoryVDB Entry
https://vuldb.com/vuln/403303/cti Permissions RequiredThird Party AdvisoryVDB Entry
https://www.gnu.org/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-90801), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.