CVE-2019-10149

CRITICALNVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score elevated to 9.8 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2022-01-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 3 sources updated this weekExploited in the wild
9.8EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 100%CVSS: 9.8Exploit: cisa kev · ssvc active · Metasploit · Exploit-DB (verified) · epss top5pct · epss high · public exploitExposed: 0

A fix is available — apply it.

A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
84(Attend)
EG Risk 84/100SSVC: 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
Severity98% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
100%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

June 5, 2019

Last Modified

November 6, 2025

Advisory Details (9)

Auto-updated Sep 17, 2026
Patch available.
generic

oss-security - Re: Statistics for distros lists updated for 2019Q2

http://www.openwall.com/lists/oss-security/2019/07/25/6
generic Patch Available

oss-security - Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploit

http://www.openwall.com/lists/oss-security/2019/06/06/1
generic Patch Available

oss-security - Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploit

http://www.openwall.com/lists/oss-security/2019/06/05/4
generic

oss-security - Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploit

http://www.openwall.com/lists/oss-security/2019/06/05/3
generic

oss-security - Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploit

http://www.openwall.com/lists/oss-security/2019/06/05/2
generic Patch Available

Full Disclosure: The Return of the WIZard: RCE in Exim (CVE-2019-10149)

http://seclists.org/fulldisclosure/2019/Jun/16
generic

Banned | Packet Storm

http://packetstormsecurity.com/files/154198/Exim-4.91-Local-Privilege-Escalation.html
generic

Banned | Packet Storm

http://packetstormsecurity.com/files/153312/Exim-4.91-Local-Privilege-Escalation.html
generic

Banned | Packet Storm

http://packetstormsecurity.com/files/153218/Exim-4.9.1-Remote-Command-Execution.html

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntueximon4 (4.91-6ubuntu1.1) @ cosmic2026-09-20ubuntu

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.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
exim4—4.92~RC3-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
exim4—4.92~RC3-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
exim4—4.92~RC3-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
exim4—4.92~RC3-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
exim44.89-2 ... 4.89-2+deb9u3~bpo8+1 (6 versions)4.89-2+deb9u4—

Weakness Classification(2)

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

All Vendor Advisories

(1)

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 85× in last 7d / 346× 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 1,242 total refreshes for this CVE.

  1. 2026-09-20 16:07 UTCVendor advisory
  2. 2026-09-20 16:07 UTCGHSA enrichment
  3. 2026-09-20 12:09 UTCGHSA enrichment
  4. 2026-09-20 08:12 UTCVendor advisory
  5. 2026-09-20 08:12 UTCGHSA enrichment
  6. 2026-09-20 04:17 UTCVendor advisory
  7. 2026-09-20 04:17 UTCGHSA enrichment
  8. 2026-09-20 00:22 UTCVendor advisory
  9. 2026-09-20 00:22 UTCGHSA enrichment
  10. 2026-09-19 20:27 UTCVendor advisory
  11. 2026-09-19 20:27 UTCGHSA enrichment
  12. 2026-09-19 16:32 UTCVendor advisory
  13. 2026-09-19 16:32 UTCGHSA enrichment
  14. 2026-09-19 12:37 UTCGHSA enrichment
  15. 2026-09-19 08:41 UTCVendor advisory
  16. 2026-09-19 08:41 UTCGHSA enrichment
  17. 2026-09-19 04:45 UTCVendor advisory
  18. 2026-09-19 04:44 UTCGHSA enrichment
  19. 2026-09-19 00:49 UTCVendor advisory
  20. 2026-09-19 00:49 UTCGHSA enrichment
  21. 2026-09-18 20:54 UTCGHSA enrichment
  22. 2026-09-18 19:20 UTCCISA KEV update
  23. 2026-09-18 16:57 UTCVendor advisory
  24. 2026-09-18 16:57 UTCGHSA enrichment
  25. 2026-09-18 14:15 UTCCISA KEV update
Show 75 more
  1. 2026-09-18 13:02 UTCVendor advisory
  2. 2026-09-18 13:02 UTCGHSA enrichment
  3. 2026-09-18 09:07 UTCVendor advisory
  4. 2026-09-18 09:07 UTCGHSA enrichment
  5. 2026-09-18 05:12 UTCVendor advisory
  6. 2026-09-18 05:12 UTCGHSA enrichment
  7. 2026-09-18 01:17 UTCVendor advisory
  8. 2026-09-18 01:17 UTCGHSA enrichment
  9. 2026-09-17 21:22 UTCVendor advisory
  10. 2026-09-17 21:22 UTCGHSA enrichment
  11. 2026-09-17 17:26 UTCVendor advisory
  12. 2026-09-17 17:26 UTCGHSA enrichment
  13. 2026-09-17 12:42 UTCGHSA enrichment
  14. 2026-09-17 08:40 UTCVendor advisory
  15. 2026-09-17 08:40 UTCGHSA enrichment
  16. 2026-09-17 04:44 UTCVendor advisory
  17. 2026-09-17 04:44 UTCGHSA enrichment
  18. 2026-09-17 00:49 UTCVendor advisory
  19. 2026-09-17 00:49 UTCGHSA enrichment
  20. 2026-09-16 20:54 UTCVendor advisory
  21. 2026-09-16 20:54 UTCGHSA enrichment
  22. 2026-09-16 16:50 UTCVendor advisory
  23. 2026-09-16 16:50 UTCGHSA enrichment
  24. 2026-09-16 14:10 UTCCISA KEV update
  25. 2026-09-16 12:54 UTCVendor advisory
  26. 2026-09-16 12:54 UTCGHSA enrichment
  27. 2026-09-16 08:59 UTCVendor advisory
  28. 2026-09-16 08:59 UTCGHSA enrichment
  29. 2026-09-16 05:03 UTCVendor advisory
  30. 2026-09-16 05:03 UTCGHSA enrichment
  31. 2026-09-16 01:08 UTCVendor advisory
  32. 2026-09-16 01:08 UTCGHSA enrichment
  33. 2026-09-15 21:13 UTCVendor advisory
  34. 2026-09-15 21:13 UTCGHSA enrichment
  35. 2026-09-15 17:18 UTCVendor advisory
  36. 2026-09-15 17:18 UTCGHSA enrichment
  37. 2026-09-15 13:22 UTCVendor advisory
  38. 2026-09-15 13:22 UTCGHSA enrichment
  39. 2026-09-15 09:27 UTCVendor advisory
  40. 2026-09-15 09:27 UTCGHSA enrichment
  41. 2026-09-15 05:31 UTCVendor advisory
  42. 2026-09-15 05:31 UTCGHSA enrichment
  43. 2026-09-15 01:35 UTCVendor advisory
  44. 2026-09-15 01:35 UTCGHSA enrichment
  45. 2026-09-14 21:40 UTCVendor advisory
  46. 2026-09-14 21:40 UTCGHSA enrichment
  47. 2026-09-14 19:24 UTCCISA KEV update
  48. 2026-09-14 17:45 UTCVendor advisory
  49. 2026-09-14 17:45 UTCGHSA enrichment
  50. 2026-09-14 13:50 UTCVendor advisory
  51. 2026-09-14 13:50 UTCGHSA enrichment
  52. 2026-09-14 09:54 UTCGHSA enrichment
  53. 2026-09-14 05:58 UTCVendor advisory
  54. 2026-09-14 05:58 UTCGHSA enrichment
  55. 2026-09-14 02:03 UTCVendor advisory
  56. 2026-09-14 02:03 UTCGHSA enrichment
  57. 2026-09-13 22:08 UTCVendor advisory
  58. 2026-09-13 22:08 UTCGHSA enrichment
  59. 2026-09-13 18:13 UTCVendor advisory
  60. 2026-09-13 18:13 UTCGHSA enrichment
  61. 2026-09-13 14:18 UTCVendor advisory
  62. 2026-09-13 14:18 UTCGHSA enrichment
  63. 2026-09-13 10:23 UTCVendor advisory
  64. 2026-09-13 10:23 UTCGHSA enrichment
  65. 2026-09-13 06:28 UTCVendor advisory
  66. 2026-09-13 06:28 UTCGHSA enrichment
  67. 2026-09-13 02:33 UTCVendor advisory
  68. 2026-09-13 02:32 UTCGHSA enrichment
  69. 2026-09-12 22:38 UTCVendor advisory
  70. 2026-09-12 22:38 UTCGHSA enrichment
  71. 2026-09-12 18:43 UTCVendor advisory
  72. 2026-09-12 18:43 UTCGHSA enrichment
  73. 2026-09-12 14:48 UTCVendor advisory
  74. 2026-09-12 14:48 UTCGHSA enrichment
  75. 2026-09-12 10:53 UTCVendor advisory

Publicly available exploits

(10 references)

Working exploit code is in the public domain (8 GitHub PoCs) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCStick-U235/CVE-2019-10149-Exploit
    First seen Jul 29, 2021

    Exploit for CVE-2019-10149

    Open source ↗
  • GitHub PoCcloudflare/exim-cve-2019-10149-data
    First seen Jun 3, 2020

    Data Collection Related to Exim CVE-2019-10149

    Open source ↗
  • GitHub PoCDiefunction/CVE-2019-10149
    First seen Oct 27, 2019

    CVE-2019-10149 : A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.

    Open source ↗
  • GitHub PoCdarsigovrustam/CVE-2019-10149
    First seen Oct 21, 2019

    Instructions for installing a vulnerable version of Exim and its expluatation

    Open source ↗
  • GitHub PoCChris-dev1/exim.exp
    First seen Sep 5, 2019

    CVE-2019-10149

    Open source ↗
  • Exploit-DBEDB-47307✓ verified
    First seen Aug 26, 2019

    Exim 4.87 / 4.91 - Local Privilege Escalation (Metasploit)

    Open source ↗
  • GitHub PoCBrets0150/StickyExim
    First seen Jul 25, 2019

    Exim Honey Pot for CVE-2019-10149 exploit attempts.

    Open source ↗
  • GitHub PoCAzizMea/CVE-2019-10149-privilege-escalation
    First seen Jun 27, 2019

    CVE-2019-10149 privilege escalation

    Open source ↗
  • Exploit-DBEDB-46996✓ verified
    First seen Jun 17, 2019

    Exim 4.87 - 4.91 - Local Privilege Escalation

    Open source ↗
  • GitHub PoCMNEMO-CERT/PoC--CVE-2019-10149_Exim
    First seen Jun 13, 2019

    PoC for CVE-2019-10149, this vulnerability could be xploited betwen 4-87 to 4.91 version of Exim server.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2019-10149?
CVE-2019-10149 is a critical vulnerability published on June 5, 2019. A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
When was CVE-2019-10149 disclosed?
CVE-2019-10149 was first published in the National Vulnerability Database on June 5, 2019, with the most recent update on November 6, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-10149 actively exploited?
Yes. CISA added CVE-2019-10149 to the Known Exploited Vulnerabilities catalog on January 10, 2022, affecting Exim Mail Transfer Agent (MTA). KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2019-10149?
CVE-2019-10149 has a CVSS v3 base score of 9.8 (NVD).
Which products are affected by CVE-2019-10149?
CVE-2019-10149 affects Exim Mail Transfer Agent (MTA). 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-2019-10149?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-10149, 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-2019-10149

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