CVE-2015-6490: rockwellautomation micrologix_1100_firmware
CVSS: 10.0v2.0HighModified
Published 28-10-2015Last modified 03-06-2026
Vulnerability summary
CVE-2015-6490 is a high (CVSS 10.0) vulnerability in rockwellautomation micrologix_1100_firmware. EPSS estimates a 7.02% chance of exploitation in the next 30 days, higher than 94.1% of scored vulnerabilities.
CVSS score
10.0/10
010
High · v2.0 (NVD)EPSS score
7.02%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 28-10-2015PublishedVulnerability first disclosed.
- 03-06-2026Last modifiedVulnerability information updated.
Description
Stack-based buffer overflow on Allen-Bradley MicroLogix 1100 devices before B FRN 15.000 and 1400 devices through B FRN 15.003 allows remote attackers to execute arbitrary code via unspecified vectors.
CVSS metrics
3 scores · 2 sources · 2 versionsCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 10.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
7.02%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
0.00 pp
From 7.02% on 21-09-2026
21-09-202621-10-2026
EPSS score7.02%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
- 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).
Affected systems
Rockwellautomation2 products
- micrologix_1100_firmware≤ 14.000
- micrologix_1400_firmware≤ 15.002
1 vendor · 2 products
References
1 links- ics-cert.us-cert.gov/advisories/ICSA-15-300-03X Refsource MISCPatchThird Party AdvisoryUS Government Resource