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Fencer Vulns
medium 6.1

CVE-2021-22813 json

A CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists that could cause arbrit…

published 2022-01-28 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9948

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

A CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability exists that could cause arbritrary script execution when a privileged account clicks on a malicious URL specifically crafted for the NMC pointing to an edit policy file. Affected Products: 1-Phase Uninterruptible Power Supply (UPS) using NMC2 including Smart-UPS, Symmetra, and Galaxy 3500 with Network Management Card 2 (NMC2): AP9630/AP9630CH/AP9630J, AP9631/AP9631CH/AP9631J, AP9635/AP9635J (NMC2 AOS V6.9.8 and earlier), 3-Phase Uninterruptible Power Supply (UPS) using NMC2 including Symmetra PX 250/500 (SYPX) Network Management Card 2 (NMC2): AP9630/AP9630CH/AP9630J, AP9631/AP9631CH/AP9631J, AP9635/AP9635J (NMC2 AOS V6.9.6 and earlier), 3-Phase Uninterruptible Power Supply (UPS) using NMC2 including Symmetra PX 48/96/100/160 kW UPS (PX2), Symmetra PX 20/40 kW UPS (SY3P), Gutor (SXW, GVX), and Galaxy (GVMTS, GVMSA, GVXTS, GVXSA, G7K, GFC, G9KCHU): AP9630/AP9630CH/AP9630J, AP9631/AP9631CH/AP9631J, AP9635/AP9635CH (NMC2 AOS V6.9.6 and earlier), 1-Phase Uninterruptible Power Supply (UPS) using NMC3 including Smart-UPS, Symmetra, and Galaxy 3500 with Network Management Card 3 (NMC3): AP9640/AP9640J, AP9641/AP9641J, AP9643/AP9643J (NMC3 AOS V1.4.2.1 and earlier), APC Rack Power Distribution Units (PDU) using NMC2 2G Metered/Switched Rack PDUs with embedded NMC2: AP84XX, AP86XX, AP88XX, AP89XX (NMC2 AOS V6.9.6 and earlier), APC Rack Power Distribution Units (PDU) using NMC3 2G Metered/Switched Rack PDUs with embedded NMC3: APDU99xx (NMC3 AOS V1.4.0 and earlier), APC 3-Phase Power Distribution Products using NMC2 Galaxy RPP: GRPPIP2X84 (NMC2 AOS V6.9.6 and earlier), Network Management Card 2 (NMC2) for InfraStruxure 150 kVA PDU with 84 Poles (X84P): PDPB150G6F (NMC2 AOS V6.9.6 and earlier), Network Management Card 2 for InfraStruxure 40/60kVA PDU (XPDU) PD40G6FK1-M, PD40F6FK1-M, PD40L6FK1-M, PDRPPNX10 M,PD60G6FK1, PD60F6FK1, PD60L6FK1, PDRPPNX10, PD40E5EK20-M, PD40H5EK20-M (NMC2 AOS V6.9.6 and earlier), Network Management Card 2 for Modular 150/175kVA PDU (XRDP): PDPM150G6F, PDPM150L6F, PDPM175G6H (NMC2 AOS V6.9.6 and earlier), Network Management Card 2 for 400 and 500 kVA (PMM): PMM400-ALA, PMM400-ALAX, PMM400-CUB, PMM500-ALA, PMM500-ALAX, PMM500-CUB (NMC2 AOS V6.9.6 and earlier), Network Management Card 2 for Modular PDU (XRDP2G): PDPM72F-5U, PDPM138H-5U, PDPM144F, PDPM138H-R, PDPM277H, PDPM288G6H (NMC2 AOS V6.9.6 and earlier), Rack Automatic Transfer Switches (ATS) Embedded NMC2: Rack Automatic Transfer Switches - AP44XX (ATS4G) (NMC2 AOS V6.9.6 and earlier), Network Management Card 2 (NMC2) Cooling Products: InRow Cooling for series ACRP5xx, ACRP1xx, ACRD5xx, and ACRC5xx SKUs (ACRP2G), InRow Cooling for series ACRC10x SKUs (RC10X2G), InRow Cooling for series ACRD6xx and ACRC6xx SKUs (ACRD2G), InRow Cooling Display for series ACRD3xx (ACRC2G), InRow Cooling for series ACSC1xx SKUs (SC2G), InRow Cooling for series ACRD1xx and ACRD2xx (ACRPTK2G), Ecoflair IAEC25/50 Air Economizer Display (EB2G), Uniflair SP UCF0481I, UCF0341I (UNFLRSP), Uniflair LE DX Perimeter Cooling Display for SKUs: IDAV, IDEV, IDWV, IUAV, IUEV, IUWV, IXAV, IXEV, IXWV, LDAV, LDEV, and LDWV (LEDX2G), Refrigerant Distribution Unit: ACDA9xx (RDU) (NMC2 AOS V6.9.6 and earlier), Environmental Monitoring Unit with embedded NMC2 (NB250): NetBotz NBRK0250 (NMC2 AOS V6.9.6 and earlier), and Network Management Card 2 (NMC2): AP9922 Battery Management System (BM4) (NMC2 AOS V6.9.6 and earlier)

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-313-01 updated cvss 6.8

Schneider Electric NMC cards and Embedded Devices

  • Schneider Electric Software, LLC 1-Phase Uninterruptible Power Supply (UPS) using NMC2 including Smart-UPS Symmetra and Galaxy 3500 with Network Management Card 2 (NMC2) NMC2 <= 6.9.8 Schneider Electric Software, LLC 1-Phase Uninterruptible Power Supply (UPS) using NMC3 including Smart-UPS Symmetra and Galaxy 3500 with Network Management Card 3 (NMC3) NMC3 <= 1.4.2.1 Schneider Electric Software, LLC 3-Phase Uninterruptible Power Supply (UPS) using NMC2 including Symmetra PX 48/96/100/160 kW UPS (PX2) Symmetra PX 20/40 kW UPS (SY3P) Gutor (SXW GVX) and Galaxy (GVMTS GVMSA GVXTS GVXSA G7K GFC G9KCH NMC2 <= 6.9.6 Schneider Electric Software, LLC 3-Phase Uninterruptible Power Supply (UPS) using NMC2 including Symmetra PX 250/500 (SYPX) Network Management Card 2 (NMC2) NMC2 <= 6.9.6 Schneider Electric Software, LLC APC 3-Phase Power Distribution Products using NMC2 NMC2 <= 6.9.6 Schneider Electric Software, LLC APC Rack Power Distribution Units (PDU) using NMC2 NMC2 <= 6.9.6
    +10 more products
    Schneider Electric Software, LLC APC Rack Power Distribution Units (PDU) using NMC3 NMC3 <= 1.4.0 Schneider Electric Software, LLC Environmental Monitoring Unit with embedded NMC2 (NB250) NetBotz NBRK0250 NMC2 <= 6.9.6 Schneider Electric Software, LLC Network Management Card 2 (NMC2) AP9922 Battery Management System (BM4) NMC2 <= 6.9.6 Schneider Electric Software, LLC Network Management Card 2 (NMC2) Cooling Products NMC2 <= 6.9.6 Schneider Electric Software, LLC Network Management Card 2 (NMC2) for InfraStruxure 150 kVA PDU with 84 Poles (X84P) NMC2 <= 6.9.6 Schneider Electric Software, LLC Network Management Card 2 for 400 and 500 kVA (PMM) NMC2 <= 6.9.6 Schneider Electric Software, LLC Network Management Card 2 for InfraStruxure 40/60kVA PDU (XPDU) NMC2 <= 6.9.6 Schneider Electric Software, LLC Network Management Card 2 for Modular 150/175kVA PDU (XRDP) NMC2 <= 6.9.6 Schneider Electric Software, LLC Network Management Card 2 for Modular PDU (XRDP2G) NMC2 <= 6.9.6 Schneider Electric Software, LLC Rack Automatic Transfer Switches (ATS) NMC2 <= 6.9.6
    affected: mitigation “1-Phase Uninterruptible Power Supply (UPS) using NMC2: Update to v7.04 or later.” apc.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.74% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.