BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2021
CVE-2021-22763High confidence

n/a PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) — Weak Password Recovery Mechanism for Forgotten Password

Unknown · PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation)

9.8CriticalCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 1.86% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Unknown PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 3 daysRemediation target: Within 90 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

2 current
SEVD-2021-159-02 · CSAF 2.0 · revision 2.0.0 · finalSchneider Electric CPCERTPowerLogic PM5500 and PowerLogic PM8ECC
6 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • Schneider Electric PowerLogic PM5560 Versions prior to v2.7.8
  • Schneider Electric PowerLogic PM5561 Versions prior to v10.7.3
  • Schneider Electric PowerLogic PM5562 v2.5.4 and prior
  • Schneider Electric PowerLogic PM5563 Versions prior to v2.7.8
  • Schneider Electric PowerLogic PM8ECC All Versions
  • Schneider Electric PowerLogic PM5562 Versions prior to v4.3.5
Summary
CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists that could allow an attacker administrator level access to a device.
Remediation
Version 2.8.3 of the PowerLogic PM5560, 5563, 5580 firmware includes fixes for these vulnerabilities. The version update files are available for download here: https://www.se.com/ww/en/product-range/61281-powerlogicpm5000-power-meters/?parent-subcategoryid=4125&filter=business-2-building-automation-and-control - software-and-firmware If customers choose not to apply the remediation provided above, they should immediately apply the following mitigation to reduce the risk of exploit: Customers should consider blocking HTTP access to the device at the firewall level or disable the HTTP web service to reduce the risk of exposure.
SEVD-2021-159-03 · CSAF 2.0 · revision 1.0.0 · finalSchneider Electric CPCERTPowerLogic EGX100 and PowerLogicEGX300
2 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • Schneider Electric EGX100 All Versions
  • Schneider Electric EGX300 All Versions
Summary
CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists that could allow an attacker administrator level access to a device.
Remediation
PowerLogic EGX100 and EGX300 Products have reached end of service and are no longer supported. Customers should consider blocking HTTP access to the device at the firewall level once commissioning is complete to reduce the risk of exposure. Additionally, Customers should ensure the General security Recommendations listed below are in place. Customers should also consider replacing the device with a supported product to resolve this issue. Please contact your local Schneider Electric sales representative for upgrade options.
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2021-9898

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded. Verified remediation exists for at least one product or source, but 2 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

A CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could allow an attacker administrator level access to a device.

What

A CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could allow an attacker administrator level access to a device.

Why

The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

A CWE-640: Weak Password Recovery Mechanism for Forgotten Password vulnerability exists in PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) that could allow an attacker administrator level access to a device.

Why

The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Weak Password Recovery Mechanism for Forgotten Password → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-640 ↗

CWE-640: Weak Password Recovery Mechanism for Forgotten Password. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticatedCWE-640
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

Cyber Security Agency of Singapore · English · CSA-SB-20210616Security Bulletin 16 Jun 2021

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 16 Jun 2021, published on 16 June 2021. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2021-AVI-443Multiples vulnérabilités dans les produits Schneider Electric

d?id=CVE-2021-22754 Référence CVE CVE-2021-22755 https://www.cve.org/CVERecord?id=CVE-2021-22755 Référence CVE CVE-2021-22756 https://www.cve.org/CVERecord?id=CVE-2021-22756 Référence CVE CVE-2021-22757 https://www.cve.org/CVERecord?id=CVE-2021-22757 Référence CVE CVE-2021-22758 https://www.cve.org/CVERecord?id=CVE-2021-22758 Référence CVE CVE-2021-22759 https://www.cve.org/CVERecord?id=CVE-2021-22759 Référence CVE CVE-2021-22760 https://www.cve.org/CVERecord?id=CVE-2021-22760 Référence CVE CVE-2021-22761 https://www.cve.org/CVERecord?id=CVE-2021-22761 Référence CVE CVE-2021-22762 https://www.cve.org/CVERecord?id=CVE-2021-22762 Référence CVE CVE-2021-22763 https://www.cve.org/CVERecord?id=CVE-2021-22763 Référence CVE CVE-2021-22764 https://www.cve.org/CVERecord?id=CVE-2021-22764 Référence CVE CVE-2021-22765 https://www.cve.org/CVERecord?id=CVE-2021-22765 Référence CVE CVE-2021-22766 https://www.cve.org/CVERecord?id=CVE-2021-22766 Référence CVE CVE-2021-22767 https://www.cve.org/CVERecord?id=CVE-2021-22767 Référence CVE CVE-2021-22768 https://www.cve.org/CVERecord?id=CVE-2021-22768 Référence CVE CVE-2021-22769 https://www.cve.org/CVERecord?id=CVE-2021-22769 Gestion détaillée du document le 09 juin 2021 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2021-008269複数の Schneider Electric 製品におけるパスワード管理機能に関する脆弱性

複数の Schneider Electric 製品には、パスワード管理機能に関する脆弱性が存在します。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 11 Jun 2021 · Last source change 29 May 2026, 13:40 UTC · CWE-640 · Weak Password Recovery Mechanism for Forgotten Password

CVE recordCVE.org · 5.2
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2021-9898
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Missing structured fields: affected product. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    PowerLogic PM55xx, PowerLogic PM8ECC, PowerLogic EGX100 and PowerLogic EGX300 (see security notification for version infromation) · Fixed: Version 2.8.3 of the PowerLogic PM5560, 5563, 5580 firmware includes fixes for these vulnerabilities. The version update files are available for download here: https://www.se.com/ww/en/product-range/61281-powerlogicpm5000-power-meters/?parent-subcategoryid=4125&filter=business-2-building-automation-and-control - software-and-firmware If customers choose not to apply the remediation provided above, they should immediately apply the following mitigation to reduce the risk of exploit: Customers should consider blocking HTTP access to the device at the firewall level or disable the HTTP web service to reduce the risk of exposure.
    Schneider Electric CPCERT ↗
  2. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    Schneider Electric CPCERT ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release recorded from official guidance
ENISA EUVD · EUVD-2021-9898↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2021-22763 · cve.blacktree.nl