CVE-2026-15003: Binutils: gnu binutils: heap-buffer-overflow in linker leads to information disclosure and denial of service
CSIRTS triage
- What
- A heap buffer overflow in the Binutils linker can cause information disclosure and denial of service.
- Who is affected
- Build systems and development environments using Binutils linker with untrusted or malformed object files.
- Urgency
- Medium; requires processing malformed input but can leak memory contents or crash linker.
- Action
- Update Binutils to a patched version addressing CVE-2026-15003.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-15003
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-150030.11% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-15003 | coverage & exploitation status | NVD · CVE.org |
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