CVE-2020-27261: omron cx-one Stack-based Buffer Overflow
CVSS: 8.8v3.1HighModified
Published 09-02-2021Last modified 17-09-2024
Vulnerability summary
CVE-2020-27261 is a high (CVSS 8.8) Stack-based Buffer Overflow vulnerability in omron cx-one. EPSS estimates a 7.61% chance of exploitation in the next 30 days, higher than 94.5% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (NVD)EPSS score
7.61%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 09-02-2021PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
The Omron CX-One Version 4.60 and prior is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 8.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesSingle source
Medium 6.8Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
7.61%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
0.00 pp
From 7.61% on 21-09-2026
21-09-202621-10-2026
EPSS score7.61%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
Omron4 products
- cx-one≥ unspecified, ≤ 4.60 | ≤ 4.60
- cx-position≥ unspecified, ≤ 2.52 | ≤ 2.52
- cx-protocol≥ unspecified, ≤ 2.02 | ≤ 2.02
- cx-server≥ unspecified, ≤ 5.0.28 | ≤ 5.0.28
1 vendor · 4 products
References
3 links
us-cert.cisa.gov/ics/advisories/icsa-21-007-02X Refsource MISCThird Party AdvisoryUS Government Resource