What’s Vulnerable › Vulnerabilities

CVE-2019-9536

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-11-22 · updated 2026-06-17
• Weakness: CWE-755

Description

Apple iPhone 3GS bootrom malloc implementation returns a non-NULL pointer when unable to allocate memory, aka 'alloc8'. An attacker with physical access to the device can install arbitrary firmware.

Affected products

• Apple iPhone: all versions

References

• https://github.com/axi0mX/alloc8
• https://github.com/axi0mX/ipwndfu/blob/master/alloc8.py
• https://github.com/axi0mX/alloc8
• https://github.com/axi0mX/ipwndfu/blob/master/alloc8.py

Get alerted when CVE-2019-9536 or the next vulnerability affects your stack