■ Executive Risk Command Center
EPSS Score
0.3%
22th percentile
CISA KEV
Not Listed
Not present in the verified catalog snapshot; this does not prove absence of exploitation
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Source-linked automated security intelligence with explicit evidence status and provenance.
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🔍 CVE-2026-19670, CVE-2026-19671 | 📅 August 18, 2026 | 📂 Vulnerabilities | 🛡 CYBERDUDEBIVASH®
CISA SECURITY ADVISORY · UNRATED
CDB-CTI-2026-69A24AA59E33 · Generated 2026-08-18T16:46:24.412522Z
Executive Summary
View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition or execute arbitrary code. The following versions of CISA Malcolm are affected: Malcolm <26.06.1 (CVE-2026-55676) Malcolm <26.07.0 (CVE-2026-63133, CVE-2026-63134, CVE-2026-63177) Malcolm <=26.07.1 (CVE-2026-19670, CVE-2026-19671) CVSS Vendor Equipment Vulnerabilities v3 8.8 CISA CISA Malcolm Allocation of Resources Without Limits or Throttling, Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Unrestricted Upload of File with Dangerous Type, Incorrect Authorization, Improper Handling of Highly Compressed Data (Data Amplification) Background Critical Infrastructure Sectors: Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-63133 Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, safe-extract.py extracts uploaded archives with no limit on entry count, directory depth, total entries, or output size. A small malicious archive containing a large number of directory or file entries causes the filebeat processing container to create an unbounded number of filesystem objects, exhausting inodes or filesystem metadata and denying service to the processing pipeline and any service sharing the same mount. Version 26.07.0 fixes the issue. View CVE Details Affected Products CISA Malcolm Vendor: CISA Product...
Decision: Validate relevance and exposure using the cited source and internal evidence before treating this record as an incident, confirmed compromise, or customer-specific finding.
Threat Classification and Evidence Status
Intelligence family
CISA Security Advisory
Technical severity
UNRATED
Exploitation
Not confirmed by available evidence; not in verified KEV snapshot
Patch/remediation
Availability not established in the source record — verify vendor guidance
Verified Facts
Source type: CISA Security Advisory
Source publication time: 2026-08-18T12:00:00+00:00
CVE: CVE-2026-55676
EPSS: 0.298%; percentile 22.4%
KEV catalog check: Not present in the successfully retrieved catalog snapshot; this does not prove absence of exploitation.
Technical Analysis
Vulnerability class: Denial Of Service. Assessment: Active exploitation is not confirmed by the available evidence. Prioritization must combine technical severity, exposure, asset criticality, and compensating controls.
Exposure and Remediation Decisions
P0 — Inventory: Confirm the affected product and version against authoritative vendor/NVD data; prioritize internet-facing and business-critical assets.
P0 — Remediation: Availability not established in the source record — verify vendor guidance
P1 — Compensating controls: Restrict exposure, enforce least privilege, and apply vendor-supported mitigations when immediate remediation is not possible.
P1 — Retrospective review: Search only the telemetry relevant to the affected component and validated vulnerability class; absence of alerts does not prove absence of exploitation.
Source Evidence Extract
CISA Advisory: CISA Malcolm
Source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-230-01
View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition or execute arbitrary code. The following versions of CISA Malcolm are affected: Malcolm <26.06.1 (CVE-2026-55676) Malcolm <26.07.0 (CVE-2026-63133, CVE-2026-63134, CVE-2026-63177) Malcolm <=26.07.1 (CVE-2026-19670, CVE-2026-19671) CVSS Vendor Equipment Vulnerabilities v3 8.8 CISA CISA Malcolm Allocation of Resources Without Limits or Throttling, Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Unrestricted Upload of File with Dangerous Type, Incorrect Authorization, Improper Handling of Highly Compressed Data (Data Amplification) Background Critical Infrastructure Sectors: Information Technology Countries/Areas Deployed: Worldwide Company Headquarters Location: United States Vulnerabilities Expand All + CVE-2026-63133 Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, safe-extract.py extracts uploaded archives with no limit on entry count, directory depth, total entries, or output size. A small malicious archive containing a large number of directory or file entries causes the filebeat processing container to create an unbounded number of filesystem objects, exhausting inodes or filesystem metadata and denying service to the processing pipeline and any service sharing the same mount. Version 26.07.0 fixes the issue. View CVE Details Affected Products CISA Malcolm Vendor: CISA Product...
This extract is escaped and rendered from the ingested source record; generated analysis is not presented as a source fact.
MITRE ATT&CK Mapping
Impact → Endpoint Denial of Service (T1499), only where service exhaustion is observed.
Mappings are conditional analytical aids, not claims that the technique occurred. Promote a mapping to observed only after telemetry confirms the behavior.
Detection Engineering
DETECTION STATUS: TELEMETRY_SPECIFICATION_ONLY
Availability-impact evidence does not justify a process-execution or web-shell rule.
Alert on affected-service crash/restart loops, saturation, latency, and request-rate anomalies against a measured baseline.
Correlate load-balancer, application, operating-system, and infrastructure metrics around the reported failure window.
Automated intelligence synthesis — not human reviewed. Public reference draft — not a certified customer deliverable. Customer-specific action requires exposure validation and accountable human approval.
Role-Based Decisions
Vulnerability Manager: Track against cisa security advisory intake. Exploitation status: Not confirmed by available evidence; not in verified KEV snapshot. Patch status: Availability not established in the source record — verify vendor guidance. — Prioritization reflects this record's own exploitation/patch evidence, not a fixed severity template.
SOC Manager: Review the detection guidance below before enabling any blocking action on it. — Detection maturity for this record is stated explicitly, not assumed production-ready.
Source Reliability & Corroboration
cisa_advisory
Source Reliability: B
Information Credibility: 3 (Possibly True)
Overall Analytical Confidence: MEDIUM
Reported by a single identified source; an independent second source has not been found (see the evidence ledger).
🎯 Recommended For This Threat
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Provenance and Review Status
Report IDCDB-CTI-2026-69A24AA59E33
Source systemcisa_advisory
Source published2026-08-18T12:00:00+00:00
Source-record SHA-25669a24aa59e331674d0eb3864fd73adc49286b3fad57bf66c74f849e6988e00d3
Generated UTC2026-08-18T16:46:24.419772Z
Review statusAutomated intelligence synthesis — not human reviewed
CertificationPublic Intelligence Certification: TACTICAL_READY (automated evidence-graph certification — see Provenance for the source basis)