CVE-2026-6846
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
Summary
A heap-buffer-overflow vulnerability was found in binutils when processing a specially crafted XCOFF object file during linking. A local attacker could trick a user into processing this malicious file, leading to arbitrary code execution or denial of service.
Risk Assessment
The risk for the organization includes potential system compromise by a local attacker, allowing unauthorized command execution or service disruption, affecting data availability and integrity.
Recommendation
It is recommended to immediately update binutils to the latest patched version and avoid processing XCOFF files from untrusted sources.
Other vulnerabilities in binutils
See all- CVE-2026-19582Unknown
In binutils 2.46.1 and prior versions, a victim who opens a crafted PE file using binutils could execute arbitrary code unknowingly via a stack buffer overflow out of bounds write.
- CVE-2026-6845Medium
A flaw was found in binutils, specifically within the `readelf` utility, allowing a local attacker to cause a Denial of Service (DoS) by tricking a user into processing a specially crafted ELF file. Exploitation can lead to excessive resource consumption or a program crash, making the system unresponsive.
- CVE-2026-6844Medium
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 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.
Original NVD description (English source)
A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this malicious file, which could lead to arbitrary code execution, allowing the attacker to run unauthorized commands, or cause a denial of service, making the system unavailable.