How severe is CVE-2026-37540?

CVE-2026-37540 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-37540 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-37540?

CVE-2026-37540 affects Linaro Openamp. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-37540?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-37540 have an EU (EUVD) identifier?

Yes. CVE-2026-37540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26693.

When was CVE-2026-37540 published?

CVE-2026-37540 was published on 2026-05-01 and last updated on 2026-06-17.

CVE-2026-37540

CVE-2026-37540 is a high-severity vulnerability in Linaro Openamp with a CVSS 3.x base score of 8.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-190.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26693
Weakness: CWE-190
Affected product: Linaro Openamp
Published: 2026-05-01
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-37540?: CVE-2026-37540 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-37540 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-37540?: CVE-2026-37540 affects Linaro Openamp. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-37540?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-37540 have an EU (EUVD) identifier?: Yes. CVE-2026-37540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26693.
When was CVE-2026-37540 published?: CVE-2026-37540 was published on 2026-05-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:linaro:openamp:2025.10.0:*:*:*:*:*:*:*

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