CVE-2019-10758

CRITICALNVD 9.99.9—
EchelonGraph scoreHIGH confidence

Score elevated to 9.9 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-12-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.9 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 3 sources updated this weekExploited in the wild
9.9
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS: 85%CVSS: 9.9Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

mongo-express before 0.54.0 is vulnerable to Remote Code Execution via endpoints that uses the toBSON method. A misuse of the vm dependency to perform exec commands in a non-safe environment.

CVSS v3
9.9
EG Score
9.9(high)
EG Risk
85(Attend)
EG Risk 85/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity99% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
99.7%
KEV
⚠ Exploited

Published

December 24, 2019

Last Modified

October 27, 2025

Advisory Details (2)

Auto-updated Jul 20, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-10758
generic🔴 Active Exploitation

Remote Code Execution (RCE) in mongo-express | CVE-2019-10758 | Snyk

https://snyk.io/vuln/SNYK-JS-MONGOEXPRESS-473215

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
mongo-express—0.54.0—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 15× in last 7d / 39× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:38 UTCEG score recompute
  2. 2026-07-22 23:25 UTCEG score recompute
  3. 2026-07-22 22:18 UTCEG score recompute
  4. 2026-07-22 19:40 UTCCISA KEV update
  5. 2026-07-22 15:46 UTCEG score recompute
  6. 2026-07-22 14:05 UTCEPSS rescore
  7. 2026-07-21 18:40 UTCEG score recompute
  8. 2026-07-21 15:22 UTCEPSS rescore
  9. 2026-07-21 15:22 UTCEPSS rescore
  10. 2026-07-21 14:37 UTCCISA KEV update
  11. 2026-07-19 05:30 UTCEG score recompute
  12. 2026-07-19 02:26 UTCEPSS rescore
  13. 2026-07-19 02:26 UTCEPSS rescore
  14. 2026-07-17 07:35 UTCEG score recompute
  15. 2026-07-16 17:04 UTCCISA KEV update
  16. 2026-07-15 16:55 UTCEPSS rescore
  17. 2026-07-15 16:49 UTCCISA KEV update
  18. 2026-07-15 15:04 UTCCISA KEV update
  19. 2026-07-14 18:05 UTCCISA KEV update
  20. 2026-07-13 17:07 UTCCISA KEV update
  21. 2026-07-13 06:10 UTCEPSS rescore
  22. 2026-07-13 06:10 UTCEPSS rescore
  23. 2026-07-10 17:52 UTCCISA KEV update
  24. 2026-07-09 19:06 UTCEPSS rescore
  25. 2026-07-07 19:01 UTCCISA KEV update
Show 39 more
  1. 2026-07-07 17:16 UTCCISA KEV update
  2. 2026-07-05 02:27 UTCEPSS rescore
  3. 2026-07-01 19:16 UTCCISA KEV update
  4. 2026-07-01 15:03 UTCEPSS rescore
  5. 2026-07-01 15:03 UTCEPSS rescore
  6. 2026-06-29 19:12 UTCCISA KEV update
  7. 2026-06-28 04:54 UTCEPSS rescore
  8. 2026-06-28 04:53 UTCEPSS rescore
  9. 2026-06-25 19:15 UTCCISA KEV update
  10. 2026-06-24 14:03 UTCEPSS rescore
  11. 2026-06-24 14:02 UTCEPSS rescore
  12. 2026-06-23 21:30 UTCEPSS rescore
  13. 2026-06-23 21:30 UTCEPSS rescore
  14. 2026-06-23 17:44 UTCCISA KEV update
  15. 2026-06-21 14:54 UTCEPSS rescore
  16. 2026-06-21 14:54 UTCEPSS rescore
  17. 2026-06-18 16:13 UTCCISA KEV update
  18. 2026-06-17 17:50 UTCEPSS rescore
  19. 2026-06-16 19:33 UTCCISA KEV update
  20. 2026-06-15 19:33 UTCCISA KEV update
  21. 2026-06-15 17:45 UTCEPSS rescore
  22. 2026-06-12 23:09 UTCEPSS rescore
  23. 2026-06-12 17:35 UTCCISA KEV update
  24. 2026-06-11 19:10 UTCCISA KEV update
  25. 2026-06-09 18:42 UTCCISA KEV update
  26. 2026-06-09 17:12 UTCCISA KEV update
  27. 2026-06-08 19:16 UTCCISA KEV update
  28. 2026-06-08 17:26 UTCCISA KEV update
  29. 2026-06-05 22:43 UTCCISA KEV update
  30. 2026-06-03 19:09 UTCCISA KEV update
  31. 2026-06-02 18:32 UTCCISA KEV update
  32. 2026-06-01 20:42 UTCCISA KEV update
  33. 2026-05-29 22:20 UTCCISA KEV update
  34. 2026-05-27 20:35 UTCCISA KEV update
  35. 2026-05-26 19:18 UTCEG score recompute
  36. 2026-05-26 19:13 UTCCISA KEV update
  37. 2026-05-26 07:17 UTCEPSS rescore
  38. 2026-05-26 07:17 UTCEPSS rescore
  39. 2026-05-26 01:46 UTCOSV refresh

Publicly available exploits

(3 references)

Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoClp008/CVE-2019-10758
    First seen Jan 5, 2020

    CVE-2019-10758

    Open source ↗
  • GitHub PoCmasahiro331/CVE-2019-10758
    First seen Dec 26, 2019
    Open source ↗
  • Nucleihttp/cves/2019/CVE-2019-10758.yaml
    First seen Jan 1, 2019

    mongo-express Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2019-10758?
CVE-2019-10758 is a critical vulnerability published on December 24, 2019. mongo-express before 0.54.0 is vulnerable to Remote Code Execution via endpoints that uses the toBSON method. A misuse of the vm dependency to perform exec commands in a non-safe environment.
When was CVE-2019-10758 disclosed?
CVE-2019-10758 was first published in the National Vulnerability Database on December 24, 2019, with the most recent update on October 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-10758 actively exploited?
Yes. CISA added CVE-2019-10758 to the Known Exploited Vulnerabilities catalog on December 10, 2021, affecting MongoDB mongo-express. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2019-10758?
CVE-2019-10758 has a CVSS v3 base score of 9.9 (NVD).
Which products are affected by CVE-2019-10758?
CVE-2019-10758 affects MongoDB mongo-express. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2019-10758?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-10758, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-10758

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