CVE-2019-14236: st stm32f4_firmware Incorrect Authorization
CVSS: 9.8v3.1CriticalModified
Published 12-09-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-14236 is a critical (CVSS 9.8) Incorrect Authorization vulnerability in st stm32f4_firmware. EPSS estimates a 2.26% chance of exploitation in the next 30 days, higher than 82.7% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
2.26%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 12-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
On STMicroelectronics STM32L0, STM32L1, STM32L4, STM32F4, STM32F7, and STM32H7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated by observing CPU registers and the effect of code/instruction execution.
CVSS metrics
2 scores · 1 source · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
2.26%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.26% on 19-09-2026
19-09-202619-10-2026
EPSS score2.26%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (usenix.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
St6 products
1 vendor · 6 products
References
1 links- www.usenix.org/system/files/woot19-paper_schink.pdfX Refsource MISCExploitMitigationThird Party Advisory