Answer in brief
CVE-2026-15003 records a Medium severity (CVSS 5.6) vulnerability in Binutils: gnu binutils: heap-buffer-overflow in linker leads to information disclosure and denial of service. The current sources do not mark it as known exploited. The current feed maps Red Hat/binutils (generic), Red Hat/gcc-toolset-14-binutils (generic), Red Hat/gcc-toolset-14-gdb (generic), Red Hat/gcc-toolset-15-binutils (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/binutils (generic), Red Hat/gcc-toolset-14-binutils (generic), Red Hat/gcc-toolset-14-gdb (generic), Red Hat/gcc-toolset-15-binutils (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/binutilsgeneric | * | Not reported |
| Red Hat/gcc-toolset-14-binutilsgeneric | * | Not reported |
| Red Hat/gcc-toolset-14-gdbgeneric | * | Not reported |
| Red Hat/gcc-toolset-15-binutilsgeneric | * | Not reported |
| Red Hat/gcc-toolset-15-gdbgeneric | * | Not reported |
| Red Hat/gcc-toolset-16-binutilsgeneric | * | Not reported |
| Red Hat/gdbgeneric | * | Not reported |
| Red Hat/mingw-binutilsgeneric | * | Not reported |
| Red Hat/openshift/ose-rhel-coreos-8generic | * | Not reported |
| Red Hat/openshift/ose-rhel-coreos-9generic | * | Not reported |
Published upstream
Jul 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 21, 2026
A flaw was found in the GNU Binutils (Binary Utilities) linker. This vulnerability, a heap-buffer-overflow read (CWE-125), occurs when the linker processes a specially crafted 32-bit XCOFF (Extended Common Object File Format) object file. An attacker could exploit this by providing a malicious file, leading to an out-of-bounds read of memory. This can result in information disclosure, potentially revealing sensitive heap data, and a Denial of Service (DoS) due to the linker crashing.
Quoted source text, attributed separately from HOL analysis.