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Vulnerability threat dossier

CVE-2021-40438

Vendor unknownProduct mapping pending

Metadata pending authoritative retrieval.

VTP deterministic threat50.0of 100 · CVSS excluded

VTP analyst assessment

No AI candidate assessment for this subject

AI-assisted analytical recommendationDoes not set factual exploitation state
AI classificationNO ALERT
AI priorityNONE
AI confidenceUnknown
Public exploitation · VTP factKEV

Assessment

The latest persisted AI review did not propose this CVE for analyst escalation. Deterministic monitoring remains authoritative for the factual states below.

Why it matters

Unknown from persisted AI analysis.

Evidence

No AI candidate evidence set is persisted for this CVE.

Uncertainties

No first-party sensor telemetry is configured. Local exploitation observation is unknown.

Next watchpoint · deterministic

A validated functional exploit or automated exploitation capability would materially change this assessment.

AI analysis history (0)
    Technical severityUNKNOWNCVSS unknown · technical context
    Public exploitationKEVGlobal public evidence
    Exploit maturityNONE KNOWNReliability not implied
    EPSS1.00100th percentile · prediction
    Evidence confidence0%Strongest independent active claim
    VelocitySTABLEMaterial events only
    First-party telemetryNo first-party sensor telemetry configured.
    Availability: NO_SENSOR_CONFIGURED · Evidence: UNKNOWN
    01

    VTP deterministic assessment

    Why this matters

    1. 01

      CISA KEV lists this vulnerability as known to be exploited globally.

    2. 02

      EPSS is 1.00; this is predictive context, not exploitation evidence.

    3. 03

      No first-party sensor telemetry is configured; first-party observation is unknown.

    02

    Material change ledger

    What changed

    KEV ADDEDCISA KEV entry added
    03

    Claim provenance

    Evidence and source independence

    1publications detected
    1underlying evidence chains

    0 primary sources · 0 dependent secondary reports · 1 reports with unresolved independence. Repetition remains visible without multiplying confirmation.

    04

    Event history

    Threat timeline

    1. 15:2328 May
      EXPLOIT SOURCE UPDATE

      New exploit-source update

      ProjectDiscovery Nuclei Templates Releases published evidence linked to CVE-2021-40438.

    2. 00:0001 Dec
      KEV ADDED

      CISA KEV entry added

      CISA lists global known exploitation. This is not a VTP sensor observation.

    05

    Original publications

    Source record

    Nuclei Templates v10.4.4 - Release Notes

    New Templates Added: 179 | CVEs Added: 43 | First-time contributions: 20 🔥 Release Highlights 🔥 [ CVE-2026-47668 ] DbGate - Remote Code Execution via Anonymous JWT ( @benharvey-sage ) [critical] 🔥 [ CVE-2026-46725 ] TYPO3 ceselector Extension - Insecure Deserialization ( @dhiyaneshdk ) [critical] 🔥 [ CVE-2026-44578 ] Next.js WebSocket Upgrade Handler - SSRF ( @hacktron , @dhiyaneshdk ) [high] 🔥 [ CVE-2026-34486 ] Apache Tomcat Tribes EncryptInterceptor Bypass - Remote Code Execution ( @dhiyaneshdk ) [critical] 🔥 [ CVE-2026-33453 ] Apache Camel camel-coap - Remote Code Execution ( @dhiyaneshdk ) [critical] 🔥 [ CVE-2026-25545 ] Astro SSR - Server-Side Request Forgery ( @ritikchaddha ) [high] 🔥 [ CVE-2026-20182 ] Cisco Catalyst SD-WAN Controller - vHub Auth Bypass ( @sfewer-r7 , @Crypto-Cat ,.) [critical] 🔥 (kev) (vKEV) [ CVE-2026-9082 ] Drupal Core - SQL Injection via PostgreSQL Entity Query ( @slcyber , @dhiyaneshdk ) [critical] 🔥 (kev) (vKEV) [ CVE-2026-8181 ] WordPress Burst Statistics 3.4.0-3.4.1.1 - Auth Bypass (@0x_Akoko) [critical] 🔥 (kev) (vKEV) [ CVE-2026-5718 ] Drag and Drop Multiple File Upload - CF7 <= 1.3.9.6 - RCE( @zer0p0int ) [critical] 🔥 (kev) (vKEV) [ CVE-2026-4810 ] Google ADK-Python - Unauthenticated Builder Endpoint ( @dwisiswant0 ) [critical] 🔥 [ CVE-2026-0740 ] Ninja Forms File Uploads <= 3.3.26 - Arbitrary File Upload ( @whattheslime ) [critical] 🔥 (kev) (vKEV) [ CVE-2026-0545 ] MLflow Job API - Auth Bypass ( @dhiyaneshdk ) [critical] 🔥 [CVE-2025-62168] Squid Proxy - HTTP Auth Credentials Disclosure (@xtr0nix) [critical] 🔥 [ CVE-2025-34030 ] sar2html <=3.2.2 Plot Parameter - Remote Code Execution ( @gy741 , @TATANKA97 ) [critical] 🔥 (kev) (vKEV) [CVE-2025-32778] Web-Check < 2.0.1 Screenshot API - OS Command Injection ( @gugacyber ) [critical] 🔥 (kev) (vKEV) [ CVE-2024-32114 ] Apache ActiveMQ 6.x < 6.1.2 - Broken Access Control ( @ChrisJr404 ) [high] 🔥 (kev) (vKEV) What's Changed Bug Fixes Corrected the classification.cve-id mismatch in the CVE-2024-38856 template, which was pointing to CVE-2024-32113 (PR #16277 ). Fixed a YAML parsing failure in gradio-image-ssrf caused by an unclosed string literal in DSL matchers, after the stricter govaluate fork surfaced it (PRs #16171 , #16210 , #16243 ). Added the missing cve-id classification to CVE-2023-2745 (PR #16152 ). Added the missing words key in CVE-2023-46347 , which previously caused a YAML syntax error and prevented execution (PR #16097 ). Resolved a duplicate template id conflict for fortisandbox-panel by renaming the Fortinet-scoped template (PR #16070 ) and removed the leftover duplicate plus stray contrastapi recon templates as release-prep cleanup (PR #16118 ). Renamed the malware template id from ransomware_windows_hydracrypt for consistency (PR #16114 ). Renamed the eol-magento template id to magento-eol to follow naming conventions (PR #16154 ). Relocated opendcim-detect.yaml out of the non-existent http/detect folder (PR #16266 ). Removed unused extractors from CVE-2025-13418 (PR #16204 ). False Negatives - CVE-2023-2745 : removed an unnecessary authentication requirement so the template fires against unauthenticated targets (Issue #16133 , PR #16139 ). - CVE-2021-40438 : added support for custom Interactsh server hostnames so detection no longer requires the oast* naming convention (Issue #12074 , PR #16052 ). False Positives - CVE-2026-3844 (Issue #16124 , PR #16161 ). - CVE-2025-22457 (Issue #15955 , PR #16162 ). - http-missing-security-headers: dropped the clear-site-data matcher on the base URL (Issue #12008 , PR #16050 ) and unanchored the Content-Type regexes so matches are position-independent (PR #16125 ). - workspace-one-uem panel: removed a matcher that misfired on paths placed inside content="" attributes (PR #16117 ). Enhancements Enhanced CVE-2026-33017 by removing the redundant build_public_tmp exploit request that relied on a null flow UUID (Issue #16134 , PR #16149 ). Converted legacy http/vulnerabilities template

    CVE-2019-25246CVE-2020-10532CVE-2021-24916CVE-2021-40438CVE-2021-4463CVE-2022-0218CVE-2023-2745CVE-2023-46347CVE-2023-7327CVE-2024-10763CVE-2024-32113CVE-2024-32114CVE-2024-36420CVE-2024-38856CVE-2024-4322CVE-2024-48259CVE-2024-9362CVE-2025-12841CVE-2025-13418CVE-2025-14726CVE-2025-22457CVE-2025-32778CVE-2025-32966CVE-2025-34030CVE-2025-47577CVE-2025-48157CVE-2025-62168CVE-2026-0545CVE-2026-0740CVE-2026-20182CVE-2026-25545CVE-2026-26341CVE-2026-32230CVE-2026-33017CVE-2026-33453CVE-2026-33534CVE-2026-34486CVE-2026-34847CVE-2026-38360CVE-2026-38361CVE-2026-3844CVE-2026-39352CVE-2026-40878CVE-2026-42281CVE-2026-42569CVE-2026-44578CVE-2026-46372CVE-2026-46670CVE-2026-46725CVE-2026-47668CVE-2026-4810CVE-2026-5718CVE-2026-6433CVE-2026-8181CVE-2026-8679CVE-2026-9082
    Separate evidence group
    Original
    06

    Technical vulnerability data

    Context, not threat proof

    VTP threat score50.0vtp-threat-v1-public
    Public exploitation30 / 30
    EPSS prediction20 / 20
    Exploit availability0 / 15
    Source independence0 / 15
    Intelligence recency0 / 10
    Threat acceleration0 / 10
    CVSS technical severityExcluded
    CVSS
    Unknown · UNKNOWN
    Vector
    Unknown
    CWE
    Unknown
    CPE records
    0
    Deterministic history records
    3
    07

    Raw observations

    First-party sensor records

    No first-party sensor telemetry configured.