CVE-2018-7521: ics-cert omron cx-supervisor Use After Free
CVSS: 5.3v3.0MediumModified
Published 21-03-2018Last modified 16-09-2024
Vulnerability summary
CVE-2018-7521 is a medium (CVSS 5.3) Use After Free vulnerability in ics-cert omron cx-supervisor. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 25.8% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.0 (NVD)EPSS score
0.34%
0%100%
Low · -0.04 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 21-03-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
In Omron CX-Supervisor Versions 3.30 and prior, use after free vulnerabilities can be exploited when CX Supervisor parses a specially crafted project file.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LSourcesSingle source
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.34%
Chance of exploitation in the next 30 days
Percentile
26%
Versus all other CVEs
30-day change
-0.04 pp
From 0.38% on 21-09-2026
21-09-202621-10-2026
EPSS score0.34%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ics-cert1 product
- omron cx-supervisorVersion 3.30 and prior
Omron1 product
- cx-supervisor≤ 3.30
2 vendors · 2 products
References
2 links- ics-cert.us-cert.gov/advisories/ICSA-18-072-01X Refsource MISCMitigationThird Party AdvisoryUS Government Resource