In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1…
Priority LOW 37CWE-732Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In ARM Trusted Firmware 1.3, RO memory is always executable at AArch64 Secure EL1, allowing attackers to bypass the MT_EXECUTE_NEVER protection mechanism. This issue occurs because of inconsistency in the number of execute-never bits (one bit versus two bits).
Why it matters now
EPSS 0.00881 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7563
- 2026-10-03 Alias added: GHSA-26gw-4gmp-qgf3
References
More OP-TEE Trusted Firmware-a vulnerabilities
- TI-2017-11033 In all versions of ARM Trusted Firmware up to and including v1.4, not initializing or… CVSS 3.1HIGH 7.5
- TI-2017-05205 In ARM Trusted Firmware through 1.3, the secure self-hosted invasive debug interface… CVSS 3.1HIGH 7.5
- TI-2022-23658 Trusted Firmware-A through 2.8 has an out-of-bounds read in the X.509 parser for parsing… CVSS 3.1HIGH 7.4
- TI-2017-07008 The BL1 FWU SMC handling code in ARM Trusted Firmware before 1.4 might allow attackers to… CVSS 3.1HIGH 7.0
- TI-2018-13763 ARM Trusted Firmware-A allows information disclosure. CVSS 3.1MEDIUM 5.3
- TI-2023-15001 Improper input validation in AMD Zynq™ UltraScale+™ MPSoC/RFSoC CVSS 3.1MEDIUM 5.8
Sources
- CVE-2017-7563 · CVE Program
- CVE-2017-7563 · NVD
- FIRST EPSS
- GHSA-26gw-4gmp-qgf3 · GitHub Advisory Database · CC BY 4.0
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