Integer overflow in Linaro Openamp
CVE-2026-37540
OpenAMP v2025.10.0 ELF loader contains an integer overflow vulnerability in firmware image parsing. In elf_loader.c, it performs multiplication of two attacker-controlled 16-bit values from the ELF header without overflow checking. On 32-bit embedded systems (STM32MP1, Zynq, i.MX), large values can cause the product to wrap around to a small value.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (37.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002
Affected products
- Linaro Openamp — versions 2025.10.0
Weakness classification (CWE)
References
- github.com/OpenAMP/open-amp (Product)
- github.com/OpenAMP/open-amp/blob/main/lib/remoteproc/elf_loader.c (Product)
- gist.github.com/sgInnora/f4ac66faeefe07a653ceeb3f58cdc381 (Third Party Advisory)
Frequently asked questions
- What is CVE-2026-37540?
- CVE-2026-37540 is a high-severity vulnerability in Linaro Openamp, classified under Integer Overflow or Wraparound. CVSS score: 8.4/10. Published 2026-05-01.
- How severe is CVE-2026-37540?
- High severity. CVSS v3 base score is 8.4 out of 10.