BlackTreeCVE Intelligence
← Back to the CVE catalogue
Full vulnerability report · 2022
CVE-2022-0543High confidence

Debian-specific Redis Server Lua Sandbox Escape Vulnerability

Redis · Debian-specific Redis Servers

10.0CriticalCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

CISA confirms exploitation in the wild and lists 2022-04-18 as the remediation due date. Verified remediation exists for at least one product or source, but 1 structured product or package state 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

  • CISA confirms exploitation in the wild.
  • A structured source references public exploit or proof-of-concept material.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 99.35% 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.
  • Increase monitoring for the attack path and post-exploitation behaviour described in the report.

Verification

  1. Confirm that the asset runs Redis Debian-specific Redis Servers 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 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

4 package states
Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourceredisVendor fix publishedDebian records a fixed source-package version for this release.5:6.0.16-2Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourceredisVendor fix publishedDebian records a fixed source-package version for this release.5:6.0.16-2Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourceredisVendor fix publishedDebian records a fixed source-package version for this release.5:6.0.16-2Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourceredisVendor fix publishedDebian records a fixed source-package version for this release.5:6.0.16-2Debian Security Tracker ↗Source updated 6 Oct 2026
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-2023-346-02 · CSAF 2.0 · revision 1.0.0 · finalSchneider Electric CPCERTProLeiT Plant iT/Brewmaxx
1 known affected

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

  • Schneider Electric Plant iT/Brewmaxx v9.60 and above
Summary
It was discovered, that Redis, a persistent key-value database, due to a packaging issue, is prone to a Lua sandbox escape, which could result in remote code execution.
Remediation
Schneider Electric is establishing a remediation plan for all future versions of Plant iT that will include a fix for this vulnerability. We will update this document when the remediation is available. Until then, customers should immediately apply the following mitigations to reduce the risk of exploit: • Install the patch to disable the eval commands in Redis on: o Application Server o VisuHub o Engineering Workstations o Workstation with emergency mode functionality • The patch is available via ProLeiT Support: https://www.proleit.com/support/ • Force usage of secure Redis configuration templates in system settings as documented in the patch manual. • Restart all patched Servers and Workstations To ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric’s security notification service here: https://www.se.com/en/work/support/cybersecurity/securitynotifications.jsp
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-2022-15665

CISA KEV mirrored by ENISA

It was discovered, that redis, a persistent key-value database, due to a packaging issue, is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.

EUVD state
Present in the current official mapping
Known exploitation
Recorded by ENISA since 28 Mar 2022. Evidence sources: cisa_kev.
ENISA score
10.0 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

CISA confirms exploitation in the wild and lists 2022-04-18 as the remediation due date. Verified remediation exists for at least one product or source, but 1 structured product or package state remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

Redis is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.

What

Redis is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.

Why

The application reaches a protected operation without first confirming that the requester is authorised.

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

Redis is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.

Why

The application reaches a protected operation without first confirming that the requester is authorised.

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.
Confirmed in the wild

CISA added this CVE to its Known Exploited Vulnerabilities catalogue on 2022-03-28.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
Reference recorded

A structured CVE source labels at least one public reference as exploit material. BlackTree has not independently validated that it is safe, reliable or weaponised.

Likely attack path
a network path → Missing Authorization → 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
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-862 ↗

CWE-862: Missing Authorization. The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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:C/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.SChangedScope: The attack can affect a component governed by a different security 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-862CISA KEVPublic exploit reference
A

Official authority intelligence

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

ENISA EUVD · EUVD-2022-15665Known-exploited evidence recorded

It was discovered, that redis, a persistent key-value database, due to a packaging issue, is prone to a (Debian-specific) Lua sandbox escape, which could result in remote code execution.

Official EUVD record ↗
Cyber Security Agency of Singapore · English · CSA-SB-20220223Security Bulletin 23 Feb 2022

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 23 Feb 2022, published on 23 February 2022. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
CERT-FR · French · CERTFR-2025-AVI-0524Multiples vulnérabilités dans VMware Tanzu

d?id=CVE-2021-45829 Référence CVE CVE-2021-45830 https://www.cve.org/CVERecord?id=CVE-2021-45830 Référence CVE CVE-2021-45832 https://www.cve.org/CVERecord?id=CVE-2021-45832 Référence CVE CVE-2021-45833 https://www.cve.org/CVERecord?id=CVE-2021-45833 Référence CVE CVE-2021-45943 https://www.cve.org/CVERecord?id=CVE-2021-45943 Référence CVE CVE-2021-46242 https://www.cve.org/CVERecord?id=CVE-2021-46242 Référence CVE CVE-2021-46243 https://www.cve.org/CVERecord?id=CVE-2021-46243 Référence CVE CVE-2021-46244 https://www.cve.org/CVERecord?id=CVE-2021-46244 Référence CVE CVE-2021-46848 https://www.cve.org/CVERecord?id=CVE-2021-46848 Référence CVE CVE-2022-0543 https://www.cve.org/CVERecord?id=CVE-2022-0543 Référence CVE CVE-2022-1271 https://www.cve.org/CVERecord?id=CVE-2022-1271 Référence CVE CVE-2022-1705 https://www.cve.org/CVERecord?id=CVE-2022-1705 Référence CVE CVE-2022-1941 https://www.cve.org/CVERecord?id=CVE-2022-1941 Référence CVE CVE-2022-1962 https://www.cve.org/CVERecord?id=CVE-2022-1962 Référence CVE CVE-2022-25942 https://www.cve.org/CVERecord?id=CVE-2022-25942 Référence CVE CVE-2022-25972 https://www.cve.org/CVERecord?id=CVE-2022-25972 Référence CVE CVE-2022-26061 https://www.cve.org/CVERecord?id=CVE-2022-26061 Référence CVE CVE-2022-27664 https://www.cve.org/CVERecord?id=CVE-2022-

Official advisory ↗
CERT-FR · French · CERTFR-2023-AVI-1014Multiples vulnérabilités dans les produits Schneider Electric

De multiples vulnérabilités ont été découvertes dans les produits Schneider Electric. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2022-007116redis における脆弱性

redis には、不特定の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
Schneider Electric Plant iT/Brewmaxx v9.60 and above
Fixed
An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
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
Schneider Electric is establishing a remediation plan for all future versions of Plant iT that will include a fix for this vulnerability. We will update this document when the remediation is available. Until then, customers should immediately apply the following mitigations to reduce the risk of exploit: • Install the patch to disable the eval commands in Redis on: o Application Server o VisuHub o Engineering Workstations o Workstation with emergency mode functionality • The patch is available via ProLeiT Support: https://www.proleit.com/support/ • Force usage of secure Redis configuration templates in system settings as documented in the patch manual. • Restart all patched Servers and Workstations To ensure you are informed of all updates, including details on affected products and remediation plans, subscribe to Schneider Electric’s security notification service here: https://www.se.com/en/work/support/cybersecurity/securitynotifications.jsp
04

Evidence and provenance

Published 18 Feb 2022 · Last source change 21 Oct 2025, 23:15 UTC · CWE-862 · Missing Authorization

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-2022-15665
Product sourceVendor CSAF · Schneider Electric CPCERT
Remediation sourceVendor CSAF · Schneider Electric CPCERT
CWE sourceCISA ADP
NVD statusNVD enriched

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
    n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    After
    redis: n/a · Fixed: An authoritative update reference is available, but the fixed version is not recorded in the structured CVE fields. Check the linked vendor advisory for the applicable release.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Added to CISA KEV
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2022-15665↗Vendor CSAF · Schneider Electric CPCERT↗CISA KEV record↗CVE authority or vendor reference↗Public exploit 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-2022-0543 · cve.blacktree.nl