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)
EPSS
99.7%
KEV
⚠ Exploited

Published

December 24, 2019

Last Modified

October 27, 2025

Advisory Details (2)

Auto-updated Jul 6, 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 48× in last 7d / 213× 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.

Showing the most recent 100 of 299 total refreshes for this CVE.

  1. 2026-07-12 01:24 UTCEG score recompute
  2. 2026-07-11 21:35 UTCEG score recompute
  3. 2026-07-11 17:46 UTCEG score recompute
  4. 2026-07-11 13:57 UTCEG score recompute
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  8. 2026-07-10 22:38 UTCEG score recompute
  9. 2026-07-10 18:49 UTCEG score recompute
  10. 2026-07-10 17:52 UTCCISA KEV update
  11. 2026-07-10 15:00 UTCEG score recompute
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  17. 2026-07-09 19:06 UTCEPSS rescore
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  1. 2026-07-08 09:27 UTCEG score recompute
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  3. 2026-07-08 01:48 UTCEG score recompute
  4. 2026-07-07 22:00 UTCEG score recompute
  5. 2026-07-07 19:01 UTCCISA KEV update
  6. 2026-07-07 18:10 UTCEG score recompute
  7. 2026-07-07 17:16 UTCCISA KEV update
  8. 2026-07-07 14:19 UTCEG score recompute
  9. 2026-07-07 10:28 UTCEG score recompute
  10. 2026-07-07 06:37 UTCEG score recompute
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  24. 2026-07-05 02:27 UTCEPSS rescore
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  27. 2026-07-04 17:20 UTCEG score recompute
  28. 2026-07-04 13:31 UTCEG score recompute
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  30. 2026-07-04 05:53 UTCEG score recompute
  31. 2026-07-04 02:03 UTCEG score recompute
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  44. 2026-07-02 00:19 UTCEG score recompute
  45. 2026-07-01 20:30 UTCEG score recompute
  46. 2026-07-01 19:16 UTCCISA KEV update
  47. 2026-07-01 16:41 UTCEG score recompute
  48. 2026-07-01 15:03 UTCEPSS rescore
  49. 2026-07-01 15:03 UTCEPSS rescore
  50. 2026-07-01 12:52 UTCEG score recompute
  51. 2026-07-01 09:03 UTCEG score recompute
  52. 2026-07-01 05:14 UTCEG score recompute
  53. 2026-07-01 01:25 UTCEG score recompute
  54. 2026-06-30 21:36 UTCEG score recompute
  55. 2026-06-30 17:46 UTCEG score recompute
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  59. 2026-06-30 02:28 UTCEG score recompute
  60. 2026-06-29 22:39 UTCEG score recompute
  61. 2026-06-29 19:12 UTCCISA KEV update
  62. 2026-06-29 18:50 UTCEG score recompute
  63. 2026-06-29 15:01 UTCEG score recompute
  64. 2026-06-29 11:12 UTCEG score recompute
  65. 2026-06-29 07:23 UTCEG score recompute
  66. 2026-06-29 03:33 UTCEG score recompute
  67. 2026-06-28 23:44 UTCEG score recompute
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  70. 2026-06-28 12:15 UTCEG score recompute
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  72. 2026-06-28 04:54 UTCEPSS rescore
  73. 2026-06-28 04:53 UTCEPSS rescore
  74. 2026-06-28 04:36 UTCEG score recompute
  75. 2026-06-28 00:46 UTCEG score recompute

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

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