CVE-2026-6845
Binutils: binutils: denial of service via crafted elf file
What happened?
A flaw was found in binutils, specifically within the `readelf` utility. This vulnerability allows a local attacker to cause a Denial of Service (DoS) by tricking a user into processing a specially crafted Executable and Linkable Format (ELF) file. The exploitation of this flaw can lead to the system becoming unresponsive due to excessive resource consumption or a program crash.
Affected software and versions
| Software | Version information | Fixed version |
|---|---|---|
| binutils-mainRed Hat | unaffected: 2.45.1-5.2.hum1 to < * | See vendor advisory |
| binutils-mainRed Hat | unaffected: 2.46.1-1.hum1 to < * | See vendor advisory |
| binutilsRed Hat | Default status: affected | See vendor advisory |
| gcc-toolset-15-binutilsRed Hat | Default status: affected | See vendor advisory |
| gdbRed Hat | Default status: affected | See vendor advisory |
| mingw-binutilsRed Hat | Default status: affected | See vendor advisory |
| binutilsRed Hat | Default status: affected | See vendor advisory |
| binutilsRed Hat | Default status: affected | See vendor advisory |
| gdbRed Hat | Default status: affected | See vendor advisory |
| binutilsRed Hat | Default status: affected | See vendor advisory |
| gcc-toolset-14-binutilsRed Hat | Default status: affected | See vendor advisory |
| gcc-toolset-14-gdbRed Hat | Default status: affected | See vendor advisory |
| gcc-toolset-15-binutilsRed Hat | Default status: affected | See vendor advisory |
| gcc-toolset-15-gdbRed Hat | Default status: affected | See vendor advisory |
| gdbRed Hat | Default status: affected | See vendor advisory |
| mingw-binutilsRed Hat | Default status: affected | See vendor advisory |
| binutilsRed Hat | Default status: affected | See vendor advisory |
| gcc-toolset-14-binutilsRed Hat | Default status: affected | See vendor advisory |
| gcc-toolset-15-binutilsRed Hat | Default status: affected | See vendor advisory |
| gdbRed Hat | Default status: affected | See vendor advisory |
| mingw-binutilsRed Hat | Default status: affected | See vendor advisory |
| rhoai/odh-dashboard-rhel9Red Hat | Default status: unknown | See vendor advisory |
| openshift/ose-rhel-coreos-8Red Hat | Default status: affected | See vendor advisory |
| openshift/ose-rhel-coreos-9Red Hat | Default status: affected | See vendor advisory |
Version information comes from the source record and can include unaffected products and exceptions. Distribution packages may contain backported fixes: an older upstream version alone does not prove a server is affected.
Is it being exploited?
This CVE was not listed in the CISA catalogue at our last retrieval. This does not establish that exploitation is absent.
How to respond
- Confirm the product, installed package version, and any configuration requirements in the vendor advisory.
- Follow the vendor’s remediation or workaround guidance in the references below. Structured fixed-version data is unavailable here; the publisher’s description may include a fix or workaround.
- Restart affected services if required, then verify the running version. Known exploitation may warrant investigation as well as patching.