CVE-2019-14238: st stm32f4_firmware Improper Authentication
CVSS: 6.6v3.1MediumModified
Published 24-09-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-14238 is a medium (CVSS 6.6) Improper Authentication vulnerability in st stm32f4_firmware. EPSS estimates a 0.40% chance of exploitation in the next 30 days, higher than 32.9% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
6.6/10
010
Medium · v3.1 (NVD)EPSS score
0.40%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference
Timeline
- 24-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
On STMicroelectronics STM32F7 devices, Proprietary Code Read Out Protection (PCROP) (a software IP protection method) can be defeated with a debug probe via the Instruction Tightly Coupled Memory (ITCM) bus.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.6Preferred score · NVD (NIST)
CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.40%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
0.00 pp
From 0.40% on 19-09-2026
19-09-202619-10-2026
EPSS score0.40%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (usenix.org)
Maturity: unknown
Exploit Reference (usenix.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
St6 products
1 vendor · 6 products
References
2 links- www.usenix.org/system/files/woot19-paper_schink.pdfX Refsource MISCExploitMitigationThird Party Advisory