Gnu Binutils
CVE-2026-6844
A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, a resource exhaustion (CWE-400), can lead to an out-of-memory condition. The other, a null pointer dereference (CWE-476), can cause a segmentation fault. Both issues can result in the `readelf` utility becoming unresponsive or crashing, leading to a denial of service.
What this means for your business
- It affects Gnu Binutils. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it only with access to the machine itself, without a login, but only after tricking someone into an action such as opening a file or a link.
- FIRST's prediction model gives it a 0.1% chance of attack attempts being seen in the next 30 days, ranking above 1% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Gnu Binutils, and which version. The affected versions are listed further down this page.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Fastnexa security experts
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Scoring
- CVSS
- 5.5 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H- Weakness
- CWE-400
- Assigned by
- secalert@redhat.com
Dates
- Published
- 2026-04-22
- Last modified
- 2026-09-01
- Sources
- NVD
Affected products
- Gnu Binutilsall versions
- Redhat Hardened Imagesall versions
- Redhat Openshift Container Platform4.0
- Redhat Enterprise Linux7.0, 8.0, 9.0, 10.0
As listed in the NVD configuration data. Not a statement about your estate.