CVE-2017-7924
No exploitation reported by the sources we read.
- Published2017-09-20
- WeaknessCWE-20
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.
Timeline
dates in UTC- 2017-09-2016:29CVE publishedNVD
- 2026-10-2319:23EPSS crossed 10 %FIRST EPSS
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-7924?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-7924?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| — | all versions | no fix published | NVD |
1 more product in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Rockwell Automation MicroLogix 1100 Controllers
MicroLogix 1100 controllers: 1763-L16DWD · MicroLogix 1100 controllers: 1763-L16BWA · MicroLogix 1100 controllers: 1763-L16AWA · +1 more
Fix
- Vendor fix CISA ICSA-17-138-03 · 4 productsRockwell Automation recommends updating to the latest firmware revision of MicroLogix 1100 controllers, Version FRN 16.0 or later.
- Mitigation from the vendor CISA ICSA-17-138-03 · 4 productsFor more information on this vulnerability and more detailed mitigation instructions, please see Rockwell Automation's advisory.
- Mitigation from the vendor CISA ICSA-17-138-03 · 4 productsReference Rockwell Automation's security page.
Advisories and patches
- ics-cert.us-cert.govMitigation
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.07.5read 2026-10-23
- NVDCVSS 2.05read 2026-10-23
- CNAweakness (CWE)CWE-20read 2026-10-23
- NVDweakness (CWE)CWE-20read 2026-10-23
- FIRST EPSSEPSS score22.2 %read 2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2017-09-20
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2017-7924?
Is CVE-2017-7924 actively exploited?
What is the CVSS score for CVE-2017-7924?
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Related vulnerabilities
Same product first, then the same vendor advisory and the same publication week.