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No exploitation reportedFix available

CVE-2020-7479

No exploitation reported by the sources we read.

  • Published2020-03-23
  • Fixed in14.0.0.20009
  • WeaknessCWE-306

Am I 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-306: Missing Authentication for Critical Function vulnerability exists in IGSS (Versions 14 and prior using the service: IGSSupdate), which could allow a local user to execute processes that otherwise require escalation privileges when sending local network commands to the IGSS Update Service.

Timeline

dates in UTC
  1. 2020-03-2320:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-7479?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-7479?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Schneider-electric interactive graphical scada system
BranchAffectedFixed in
14.0≥ 14.0, < 14.0.0.2000914.0.0.20009

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

  • ICSA-20-084-02 CISA1 known affected

    Schneider Electric IGSS SCADA Software

    IGSS (Interactive Graphical SCADA System): Versions 14 and prior using the service IGSSupdate

Full record on NVD

Fix

  1. Update Schneider-electric interactive graphical scada system to 14.0.0.20009
  2. Mitigation from the vendor CISA ICSA-20-084-02 · 1 productSchneider Electric has provided IGSS14 Version 14.0.0.20009 to address these vulnerabilities. Users are recommended to update to IGSS Version 14.
  3. Mitigation from the vendor CISA ICSA-20-084-02 · 1 productAlternatively, the following workarounds and mitigations can be applied to reduce risk:
  4. Mitigation from the vendor CISA ICSA-20-084-02 · 1 productDisable the IGSS Update service when it is not required installing updates using the service.
  5. Mitigation from the vendor CISA ICSA-20-084-02 · 1 productKeep the infrastructure offline and do not allow Windows login and network access for untrusted people and sources.
  6. Mitigation from the vendor CISA ICSA-20-084-02 · 1 productFor more information, see the Schneider Electric security notification.

Advisories and patches

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 2.04.6read 2026-10-23
  • CNAweakness (CWE)CWE-306read 2026-10-23
  • NVDweakness (CWE)CWE-306read 2026-10-23
  • FIRST EPSSEPSS score0.5 %2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2020-03-23
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-7479?

A CWE-306: Missing Authentication for Critical Function vulnerability exists in IGSS (Versions 14 and prior using the service: IGSSupdate), which could allow a local user to execute processes that otherwise require escalation privileges when sending local network commands to the IGSS Update Service.

Is CVE-2020-7479 actively exploited?

Active exploitation of CVE-2020-7479 has not been confirmed. Its EPSS score was 0.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-7479?

CVE-2020-7479 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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