CVE-2020-7550
No exploitation reported by the sources we read.
- Published2020-11-19
- WeaknessCWE-119
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
A CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 and prior that could cause Remote Code Execution when malicious CGF (Configuration Group File) file is imported to IGSS Definition.
Timeline
dates in UTC- 2020-11-1922:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-7550?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-7550?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 |
|---|---|---|---|
| 14.0 | ≤ 14.0.0.20247 | no fix published | NVD |
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
Schneider Electric Interactive Graphical SCADA System (IGSS)
IGSS Definition (Def.exe): Version 14.0.0.20247 and prior
Fix
- Mitigation from the vendor CISA ICSA-20-324-04 · 1 productSchneider Electric has provided a new version of the IGSS Definition module to address these vulnerabilities. Users are recommended to update to IGSS Version 14.0.0.20248
- Mitigation from the vendor CISA ICSA-20-324-04 · 1 productAvoid importing CGF files from untrusted sources
- Mitigation from the vendor CISA ICSA-20-324-04 · 1 productUsers should also consider upgrading to the latest product offering IGSS v15 to resolve this issue.
- Mitigation from the vendor CISA ICSA-20-324-04 · 1 productFor more information, see Schneider Electric security notification SEVD-2020-315-03
Advisories and patches
- www.se.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.8read 2026-10-23
- NVDCVSS 2.06.8read 2026-10-23
- CNAweakness (CWE)CWE-119read 2026-10-23
- NVDweakness (CWE)CWE-119read 2026-10-23
- FIRST EPSSEPSS score2.5 %2026-10-23
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Published
- 2020-11-19
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2020-7550?
Is CVE-2020-7550 actively exploited?
What is the CVSS score for CVE-2020-7550?
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Related vulnerabilities
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