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Full vulnerability report · 2022
CVE-2022-22805High confidence

Schneider Electric SmartConnect — Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Schneider Electric · SmartConnect

9.8CriticalCVSS 3.1
Recommended action
Within 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
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 11.88% 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 Schneider Electric SmartConnect 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.

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.

1 current
SEVD-2022-067-02 · CSAF 2.0 · revision 7 · finalSchneider Electric CPCERTAPC Smart-UPS SMT, SMC, SMX, SCL, SRC, XU, XP, CSH2, SURTD, SMTL, SRT, and select SRTL Series
6 known affected

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

  • Schneider Electric SmartConnect Family SMT Series ID=1015 <=UPS 04.5
  • Schneider Electric SmartConnect Family SMC Series ID=1018 <=UPS 04.2
  • Schneider Electric SmartConnect Family SMTL Series ID=1026 <=UPS 14.9
  • Schneider Electric SmartConnect Family SMT Series ID=1031 <=UPS 14.9
  • Schneider Electric SmartConnect Family SCL Series ID=1030 <=UPS 14.9
  • Schneider Electric SmartConnect Family SMX Series ID=1031 <=UPS 14.9
Summary
A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists that could cause remote code execution when an improperly handled TLS packet is reassembled.
Remediation
Firmware Version UPS 04.6 (SMT series), Version UPS 15.0 (SMTL, SCL, SMX series) and Version UPS 04.3 (SMC series) includes a partial remediation for CVE-2022-0715, which will reduce the risk of successful exploitation, for the Smart-UPS SMT and SMC series and a fix for CVE-2022-22805 and CVE-2022-22806 for the SmartConnect UPS SMT, SMTL, SCL, SMX series and SMC series.There are three ways to apply this remediation: 1. For units connected to the SmartConnect Portal, new firmware will become available automatically. Follow prompts via the portal or display to install new firmware. 2. For units not connected to the SmartConnect Portal, use the Firmware Upgrade Wizard to install the new firmware. 3. For those devices which include a NMC, it can be used to remotely update the firmware of the UPS. When downloading updates, only download from the official Schneider Electric sources above and ensure that hashes are verified before installation.Note: After the firmware is installed, the unit will lose the capability to install future firmware via the NMC. All other methods of firmware update will continue to be available. A future firmware update will be released to re-enable this feature. To verify new firmware version post-installation: Go to the About screen on local display, the SmartConnect portal, or on the NMC and confirm that the UPS firmware Revision is UPS 04.6 (SMT series) and UPS 04.3 (SMC series)In addition to the remediations above, customers should immediately apply the General Security Recommendations provided below to reduce the risk of exploit.
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-2022-27948

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 actionWithin 72 hours

Critical technical impact with a remotely reachable, unauthenticated path; no CISA KEV confirmation is currently recorded.

Patch available
01

What, why and how

A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists that could cause remote code execution when an improperly handled TLS packet is reassembled. Affected Product: SmartConnect Family: SMT Series (SMT Series ID=1015: UPS 04.5 and prior), SMC Series (SMC Series ID=1018: UPS 04.2 and prior), SMTL Series (SMTL Series ID=1026: UPS 02.9 and prior), SCL Series (SCL Series ID=1029: UPS 02.5 and prior / SCL Series ID=1030: UPS 02.5 and prior / SCL Series ID=1036: UPS 02.5 and prior / SCL Series ID=1037: UPS 03.1 and prior), SMX Series (SMX Series ID=1031: UPS 03.1 and prior)

What

A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists that could cause remote code execution when an improperly handled TLS packet is reassembled. Affected Product: SmartConnect Family: SMT Series (SMT Series ID=1015: UPS 04.5 and prior), SMC Series (SMC Series ID=1018: UPS 04.2 and prior), SMTL Series (SMTL Series ID=1026: UPS 02.9 and prior), SCL Series (SCL Series ID=1029: UPS 02.5 and prior / SCL Series ID=1030: UPS 02.5 and prior / SCL Series ID=1036: UPS 02.5 and prior / SCL Series ID=1037: UPS 03.1 and prior), SMX Series (SMX Series ID=1031: UPS 03.1 and prior)

Why

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

What

A CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability exists that could cause remote code execution when an improperly handled TLS packet is reassembled. Affected Product: SmartConnect Family: SMT Series (SMT Series ID=1015: UPS 04.5 and prior), SMC Series (SMC Series ID=1018: UPS 04.2 and prior), SMTL Series (SMTL Series ID=1026: UPS 02.9 and prior), SCL Series (SCL Series ID=1029: UPS 02.5 and prior / SCL Series ID=1030: UPS 02.5 and prior / SCL Series ID=1036: UPS 02.5 and prior / SCL Series ID=1037: UPS 03.1 and prior), SMX Series (SMX Series ID=1031: UPS 03.1 and prior)

Why

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may execute code or commands in the affected security context.

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 → Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') → execute code or commands in the affected security context
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-120 ↗

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'). The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

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
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkUnauthenticatedRemote code executionCWE-120
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-20220316Security Bulletin 16 Mar 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 16 Mar 2022, published on 16 March 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-628Multiples vulnérabilités dans les produits Schneider Electric

ord?id=CVE-2021-22779 Référence CVE CVE-2021-22780 https://www.cve.org/CVERecord?id=CVE-2021-22780 Référence CVE CVE-2021-22781 https://www.cve.org/CVERecord?id=CVE-2021-22781 Référence CVE CVE-2021-22782 https://www.cve.org/CVERecord?id=CVE-2021-22782 Référence CVE CVE-2021-22797 https://www.cve.org/CVERecord?id=CVE-2021-22797 Référence CVE CVE-2021-29240 https://www.cve.org/CVERecord?id=CVE-2021-29240 Référence CVE CVE-2021-29241 https://www.cve.org/CVERecord?id=CVE-2021-29241 Référence CVE CVE-2021-33485 https://www.cve.org/CVERecord?id=CVE-2021-33485 Référence CVE CVE-2022-0715 https://www.cve.org/CVERecord?id=CVE-2022-0715 Référence CVE CVE-2022-22805 https://www.cve.org/CVERecord?id=CVE-2022-22805 Référence CVE CVE-2022-22806 https://www.cve.org/CVERecord?id=CVE-2022-22806 Référence CVE CVE-2022-2329 https://www.cve.org/CVERecord?id=CVE-2022-2329 Référence CVE CVE-2022-24324 https://www.cve.org/CVERecord?id=CVE-2022-24324 Référence CVE CVE-2022-26507 https://www.cve.org/CVERecord?id=CVE-2022-26507 Référence CVE CVE-2022-34753 https://www.cve.org/CVERecord?id=CVE-2022-34753 Référence CVE CVE-2022-34754 https://www.cve.org/CVERecord?id=CVE-2022-34754 Référence CVE CVE-2022-34756 https://www.cve.org/CVERecord?id=CVE-2022-34756 Référence CVE CVE-2022-34757 https://www.cve.org/CVERecord?id=CV

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-546Multiples vulnérabilités dans les produits Schneider

curity_Notification.pdf Référence CVE CVE-2020-28895 https://www.cve.org/CVERecord?id=CVE-2020-28895 Référence CVE CVE-2020-35198 https://www.cve.org/CVERecord?id=CVE-2020-35198 Référence CVE CVE-2021-22697 https://www.cve.org/CVERecord?id=CVE-2021-22697 Référence CVE CVE-2021-22698 https://www.cve.org/CVERecord?id=CVE-2021-22698 Référence CVE CVE-2022-0223 https://www.cve.org/CVERecord?id=CVE-2022-0223 Référence CVE CVE-2022-0715 https://www.cve.org/CVERecord?id=CVE-2022-0715 Référence CVE CVE-2022-22731 https://www.cve.org/CVERecord?id=CVE-2022-22731 Référence CVE CVE-2022-22732 https://www.cve.org/CVERecord?id=CVE-2022-22732 Référence CVE CVE-2022-22805 https://www.cve.org/CVERecord?id=CVE-2022-22805 Référence CVE CVE-2022-22806 https://www.cve.org/CVERecord?id=CVE-2022-22806 Référence CVE CVE-2022-24322 https://www.cve.org/CVERecord?id=CVE-2022-24322 Référence CVE CVE-2022-24323 https://www.cve.org/CVERecord?id=CVE-2022-24323 Référence CVE CVE-2022-32512 https://www.cve.org/CVERecord?id=CVE-2022-32512 Référence CVE CVE-2022-32513 https://www.cve.org/CVERecord?id=CVE-2022-32513 Référence CVE CVE-2022-32514 https://www.cve.org/CVERecord?id=CVE-2022-32514 Référence CVE CVE-2022-32515 https://www.cve.org/CVERecord?id=CVE-2022-32515 Référence CVE CVE-2022-32516 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-436Multiples vulnérabilités dans les produits Schneider Electric

De multiples vulnérabilités ont été découvertes dans les produits Schneider Electric. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance.

Official advisory ↗
CERT-FR · French · CERTFR-2022-AVI-215Multiples vulnérabilités dans les produits Schneider

rsion détaillée se trouve à la fin de ce document. Risques Atteinte à la confidentialité des données Contournement de la politique de sécurité Déni de service à distance Exécution de code arbitraire à distance Élévation de privilèges Systèmes affectés EcoStruxure Control Expert versions antérieures à 15.1 EcoStruxure Process Expert versions antérieures à 2021 SCADAPack RemoteConnect for x70 toutes versions, se référer aux mesures de contournement proposées par l'éditeur Smart-UPS séries SMT micrologiciels versions antérieures à UPS 04.6 permettant une correction partielle de la vulnérabilité CVE-2022-0715 et une correction des vulnérabilités CVE-2022-22805 et CVE-2022-22806 Smart-UPS séries SMC micrologiciels versions antérieures à UPS 04.3 permettant une correction partielle de la vulnérabilité CVE-2022-0715 et une correction des vulnérabilités CVE-2022-22805 et CVE-2022-22806 Aucun correctif n'est disponible pour les séries Smart-UPS SCL, SMX et SRT ainsi que les séries SmartConnect SMTL, SCL, et SMX. Se référer aux mesures de contournement proposées par l'éditeur Ritto Wiser Door toutes versions, se référer aux mesures de contournement proposées par l'éditeur Pour les vulnérabilités identifiées CVE-2021-22778, CVE-2021-22780, CVE-2021-22781, CVE-2021-22782 et CVE-2020-12525, la mise à nivea

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-006904複数の Schneider Electric 製品における古典的バッファオーバーフローの脆弱性

SMT シリーズ 1015 ups ファームウェア、SMC シリーズ 1018 ups ファームウェア、SMTL シリーズ 1026 ups ファームウェア等複数の Schneider Electric 製品には、古典的バッファオーバーフローの脆弱性が存在します。

Official advisory ↗
KISA KrCERT/CC · Korean · KNVD-5529APC UPS 보안 취약점 업데이트 권고

#### APC UPS 보안 취약점 업데이트 권고 2022.03.14 ##### □ 개요 o Schneider Electric社는 자사 APC UPS 제품 취약점을 해결한 업데이트 발표 o 공격자가 해당 취약점을 악용하여 피해를 발생시킬 수 있으므로, 해당 제품을 사용하는 이용자들은 해결 방안에 따라 조치 권고 ##### □ 설명 [1] o UPS와 APC 클라우드 간의 TLS hackshaking 과정 중 입력 크기에 대한 검증 미흡으로 발생하는 버퍼 오버플로우 취약점 (CVE-2022-22805) 등 2개 o UPS 펌웨어 암호화 서명 누락으로 공격자가 악성 펌웨어를 배포하여 UPS의 동작을 임의로 변경할 수 있는 부적절한 인증 취약점 (CVE-2022-0715) ##### □ 영향받는 버전 CVE-ID 영향받는 제품 버전 Smart-UPS Family CVE-2022-0715 SMT Series SMT Series ID=18: UPS 09.8 및 이전 버전 SMT Series ID=1040: UPS 01.2 및 이전 버전 SMT Series ID=1031: UPS 03.1 및 이전 버전 SMC Series SMC Series ID=1005: UPS 14.1 및 이전 버전 SMC Series ID=1007: UPS 11.0 및 이전 버전 SMC Series ID=1041: UPS 01.1 및 이전 버전 SCL Series SCL Series ID=1030: UPS 02.5 및 이전 버전 SCL Series ID=1036: UPS 02.5 및 이전 버전 SMX Series SMX Series ID=20: UPS 10.2 및 이전 버전 SMX Series ID=23: UPS 07.0 및 이전 버전 SRT Series SRT Series ID=1010/1019/1025: UPS 08.3 및 이전 버전 SRT Series ID=1024: UP

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.
Patch available
Affected
Fixed
Action
Firmware Version UPS 04.6 (SMT series), Version UPS 15.0 (SMTL, SCL, SMX series) and Version UPS 04.3 (SMC series) includes a partial remediation for CVE-2022-0715, which will reduce the risk of successful exploitation, for the Smart-UPS SMT and SMC series and a fix for CVE-2022-22805 and CVE-2022-22806 for the SmartConnect UPS SMT, SMTL, SCL, SMX series and SMC series.There are three ways to apply this remediation: 1. For units connected to the SmartConnect Portal, new firmware will become available automatically. Follow prompts via the portal or display to install new firmware. 2. For units not connected to the SmartConnect Portal, use the Firmware Upgrade Wizard to install the new firmware. 3. For those devices which include a NMC, it can be used to remotely update the firmware of the UPS. When downloading updates, only download from the official Schneider Electric sources above and ensure that hashes are verified before installation.Note: After the firmware is installed, the unit will lose the capability to install future firmware via the NMC. All other methods of firmware update will continue to be available. A future firmware update will be released to re-enable this feature. To verify new firmware version post-installation: Go to the About screen on local display, the SmartConnect portal, or on the NMC and confirm that the UPS firmware Revision is UPS 04.6 (SMT series) and UPS 04.3 (SMC series)In addition to the remediations above, customers should immediately apply the General Security Recommendations provided below to reduce the risk of exploit.
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 9 Mar 2022 · Last source change 3 Aug 2024, 03:21 UTC · CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVE recordCVE.org · 5.1
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-2022-27948
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCNA
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    SMT Series; SMC Series; SMTL Series; SCL Series; SMX Series · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    SMT Series; SMC Series; SMTL Series; SCL Series; SMX Series · Fixed: Firmware Version UPS 04.6 (SMT series), Version UPS 15.0 (SMTL, SCL, SMX series) and Version UPS 04.3 (SMC series) includes a partial remediation for CVE-2022-0715, which will reduce the risk of successful exploitation, for the Smart-UPS SMT and SMC series and a fix for CVE-2022-22805 and CVE-2022-22806 for the SmartConnect UPS SMT, SMTL, SCL, SMX series and SMC series.There are three ways to apply this remediation: 1. For units connected to the SmartConnect Portal, new firmware will become available automatically. Follow prompts via the portal or display to install new firmware. 2. For units not connected to the SmartConnect Portal, use the Firmware Upgrade Wizard to install the new firmware. 3. For those devices which include a NMC, it can be used to remotely update the firmware of the UPS. When downloading updates, only download from the official Schneider Electric sources above and ensure that hashes are verified before installation.Note: After the firmware is installed, the unit will lose the capability to install future firmware via the NMC. All other methods of firmware update will continue to be available. A future firmware update will be released to re-enable this feature. To verify new firmware version post-installation: Go to the About screen on local display, the SmartConnect portal, or on the NMC and confirm that the UPS firmware Revision is UPS 04.6 (SMT series) and UPS 04.3 (SMC series)In addition to the remediations above, customers should immediately apply the General Security Recommendations provided below to reduce the risk of exploit.
    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-2022-27948↗Schneider Electric CPCERT security advisory↗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-2022-22805 · cve.blacktree.nl