Medium severity · published Sep 14, 2026
CVE-2026-90801
GNU Binutils ld cache.c cache_bwrite buffer overflow
6.6
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 11% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Binutils · GNU
2.47 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90801
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-90801
Exploit
https://github.com/r1ck9-2q/cve_summit/blob/main/Heap-buffer-overflow%20in%20%60cache_bwrite%60%20(bfdcache.c436)%20via%20malformed%20ELF%20with%20%60--gc-sections%20-w%60.md
Exploit
https://sourceware.org/bugzilla/show_bug.cgi?id=34442
Permissions Required
https://vuldb.com/cve/CVE-2026-90801
Permissions Required
https://vuldb.com/submit/920276
Permissions Required
https://vuldb.com/vuln/403303
Permissions Required
https://vuldb.com/vuln/403303/cti
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