CVE-2019-15846

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 65.4%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 36%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

Exim before 4.92.2 allows remote attackers to execute arbitrary code as root via a trailing backslash.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
98.3%
KEV
Not listed

Published

September 6, 2019

Last Modified

November 21, 2024

References (46)

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuexim4-base (4.82-3ubuntu2.4+esm1) @ trusty2026-05-27ubuntu
ubuntueximon4 (4.86.2-2ubuntu2.5) @ xenial2026-05-27ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 31× 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. 2026-07-07 13:42 UTCEPSS rescore
  2. 2026-07-05 02:27 UTCEPSS rescore
  3. 2026-07-03 00:35 UTCOSV refresh
  4. 2026-07-02 16:56 UTCEPSS rescore
  5. 2026-07-01 15:03 UTCEPSS rescore
  6. 2026-07-01 15:03 UTCEPSS rescore
  7. 2026-06-30 23:20 UTCEPSS rescore
  8. 2026-06-30 23:20 UTCEPSS rescore
  9. 2026-06-29 14:03 UTCEPSS rescore
  10. 2026-06-28 04:54 UTCEPSS rescore
  11. 2026-06-28 04:53 UTCEPSS rescore
  12. 2026-06-27 03:06 UTCEPSS rescore
  13. 2026-06-27 03:06 UTCEPSS rescore
  14. 2026-06-25 13:47 UTCEPSS rescore
  15. 2026-06-25 13:47 UTCEPSS rescore
  16. 2026-06-24 14:03 UTCEPSS rescore
  17. 2026-06-24 14:02 UTCEPSS rescore
  18. 2026-06-23 21:30 UTCEPSS rescore
  19. 2026-06-23 21:30 UTCEPSS rescore
  20. 2026-06-21 01:57 UTCEPSS rescore
  21. 2026-06-21 01:57 UTCEPSS rescore
  22. 2026-06-18 17:50 UTCEPSS rescore
  23. 2026-06-17 17:50 UTCEPSS rescore
  24. 2026-06-16 17:50 UTCEPSS rescore
  25. 2026-06-15 17:45 UTCEPSS rescore
Show 22 more
  1. 2026-06-14 19:13 UTCOSV refresh
  2. 2026-06-13 22:58 UTCEPSS rescore
  3. 2026-06-12 23:09 UTCEPSS rescore
  4. 2026-06-11 13:58 UTCEPSS rescore
  5. 2026-06-11 13:58 UTCEPSS rescore
  6. 2026-06-10 22:16 UTCEPSS rescore
  7. 2026-06-05 22:45 UTCEPSS rescore
  8. 2026-06-05 22:45 UTCEPSS rescore
  9. 2026-06-05 06:08 UTCEPSS rescore
  10. 2026-06-05 06:08 UTCEPSS rescore
  11. 2026-06-04 13:10 UTCEPSS rescore
  12. 2026-06-04 13:10 UTCEPSS rescore
  13. 2026-06-02 20:11 UTCEPSS rescore
  14. 2026-06-01 13:50 UTCEPSS rescore
  15. 2026-06-01 13:50 UTCEPSS rescore
  16. 2026-05-29 13:42 UTCEPSS rescore
  17. 2026-05-27 14:54 UTCEG score recompute
  18. 2026-05-27 14:54 UTCVendor advisory
  19. 2026-05-27 14:54 UTCGHSA enrichment
  20. 2026-05-27 13:38 UTCEPSS rescore
  21. 2026-05-26 07:17 UTCEPSS rescore
  22. 2026-05-26 07:17 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCsynacktiv/Exim-CVE-2019-15846
    First seen Oct 9, 2019

    PoC materials to exploit CVE-2019-15846

    Open source ↗

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2019-15846?
CVE-2019-15846 is a critical vulnerability published on September 6, 2019. Exim before 4.92.2 allows remote attackers to execute arbitrary code as root via a trailing backslash.
When was CVE-2019-15846 disclosed?
CVE-2019-15846 was first published in the National Vulnerability Database on September 6, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-15846 actively exploited?
CVE-2019-15846 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2019-15846?
CVE-2019-15846 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-15846?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-15846, 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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