CVE-2022-3480

highpriority · track · 0EPSS 0.009 · 60 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.93% (60th) EPSS
CVSS 7.5 · high
Is it mine?
154 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · phoenix_contact_psirt

EPSS · scored 2026-10-27

A remote, unauthenticated attacker could cause a denial-of-service of PHOENIX CONTACT FL MGUARD and TC MGUARD devices below version 8.9.0 by sending a larger number of unauthenticated HTTPS connections originating from different source IP’s. Configuring firewall limits for incoming connections cannot prevent the issue.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedphoenix_contact_psirt

    The vulnerability is fixed in firmware version 8.9.0. We strongly recommend all affected users to upgrade to this or a later version.

  • Mitigationphoenix_contact_psirt

    Don't allow access to the HTTPS management interface from untrusted networks.In the default configuration, the access is only allowed from internal interfaces.

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · info@cert.vde.comexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Phoenix Contact PSIRT DE
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USCWE-770USCWE-770US
05

affected products (154)

Products and version ranges known to be affected.

showing 20 of 154
06

advisories (1)

Vendor and ecosystem advisories describing this.

  • VDE-2022-051PHOENIX CONTACT: Denial-of-Service vulnerability in mGuard product family2022-11-15csaf · phoenix_contact_psirtDE

    A denial of service of the HTTPS management interface of PHOENIX CONTACT FL MGUARD and TC MGUARD devices can be triggered by a larger number of unauthenticated HTTPS connections originating from different source IP's. Configuring firewall limits for incoming connections cannot prevent the issue.

07

also known as (5)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduphoenix_contact_psirtNVDCVE.orgMITRE
published 2022-11-15modified 2026-06-17
09

references (6)

External citations — patches, advisories, analysis.

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