by Kastro
Paper/Archive/CVE-2021-27435

CVE-2021-27435

ARM mbed — ARM mbed Integer Overflow or Wraparound

EPSS 2%public exploitCVSS 9.8
critical.is priorityof 100
55
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 79.2.792 × 2015.8Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

ARM mbed product Version 6.3.0 is vulnerable to integer wrap-around in malloc_wrapper function, which can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

Affected

ProductAffectedFixed inSource
mbed6.3.0–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
icscert (CNA)7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial

References

refcisa.gov/uscert/ics/advisories/icsa-21-119-04refgithub.com/ARMmbed/mbed-os/pull/14408