How severe is CVE-2018-7779?

CVE-2018-7779 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-7779 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7779?

CVE-2018-7779 primarily affects Schneider-electric Homelynk Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-7779?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-7779 published?

CVE-2018-7779 was published on 2018-07-03 and last updated on 2026-06-17.

CVE-2018-7779

CVE-2018-7779 is a high-severity vulnerability in Schneider-electric Homelynk Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Schneider-electric Homelynk Firmware
Published: 2018-07-03
Last modified: 2026-06-17

Description

In Schneider Electric Wiser for KNX V2.1.0 and prior, homeLYnk V2.0.1 and prior; and spaceLYnk V2.1.0 and prior, weak and unprotected FTP access could allow an attacker unauthorized access.

Frequently asked questions

What is CVE-2018-7779?: In Schneider Electric Wiser for KNX V2.1.0 and prior, homeLYnk V2.0.1 and prior; and spaceLYnk V2.1.0 and prior, weak and unprotected FTP access could allow an attacker unauthorized access.
How severe is CVE-2018-7779?: CVE-2018-7779 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-7779 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7779?: CVE-2018-7779 primarily affects Schneider-electric Homelynk Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-7779?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-7779 published?: CVE-2018-7779 was published on 2018-07-03 and last updated on 2026-06-17.

References

https://www.schneider-electric.com/en/download/document/SEVD-2018-109-02/

Affected products (3)

cpe:2.3:o:schneider-electric:homelynk_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:spacelynk_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:schneider-electric:wiser_for_knx_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Homelynk Firmware

CVE-2021-22738 — Critical (CVSS 9.8): Use of a Broken or Risky Cryptographic Algorithm vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60…
CVE-2021-22737 — Critical (CVSS 9.8): Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior…
CVE-2021-22733 — High (CVSS 7.8): Improper Privilege Management vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which…
CVE-2021-22732 — High (CVSS 7.8): Improper Privilege Management vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior which…
CVE-2021-22736 — High (CVSS 7.5): Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in homeLYnk (Wiser…
CVE-2021-22735 — High (CVSS 7.2): Improper Verification of Cryptographic Signature vulnerability exists inhomeLYnk (Wiser For KNX) and spaceLYnk V2.60…

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