Integer overflow in Nxp Mcuxpresso Sdk
CVE-2021-27421
NXP MCUXpresso SDK versions prior to 2.8.2 are vulnerable to integer overflow in SDK_Malloc function, which could allow to access memory locations outside the bounds of a specified array, leading to unexpected behavior such segmentation fault when assigning a particular block of memory from the heap via malloc.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.009 (57.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.000
Affected products
- Nxp Mcuxpresso Sdk — versions unspecified
- Nxp Mcuxpresso Software Development Kit
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.cisa.gov/uscert/ics/advisories/icsa-21-119-04 (US Government Resource, Third Party Advisory)
- mcuxpresso.nxp.com/en/welcome (Product, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27421?
- CVE-2021-27421 is a high-severity vulnerability in Nxp Mcuxpresso Sdk, classified under Integer Overflow or Wraparound. CVSS score: 7.3/10. Published 2022-05-03.
- How severe is CVE-2021-27421?
- High severity. CVSS v3 base score is 7.3 out of 10.
- Is CVE-2021-27421 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.