CVE-2019-10149 (GCVE-0-2019-10149)

Vulnerability from cvelistv5 – Published: 2019-06-05 00:00 – Updated: 2025-10-21 23:45
VLAI? CISA KEV
Summary
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.
Severity ?
9 (Critical)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
exim exim Affected: 4.92
Create a notification for this product.
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c8b77fa7-b1fd-4d6b-84d0-79681a29f56b

Vulnerability ID: CVE-2019-10149

Status: Confirmed

Status Updated: 2022-01-10 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-01-10
Asserted: 2022-01-10
Scope
Notes: KEV entry: Exim Mail Transfer Agent (MTA) Improper Input Validation | Affected: Exim / Mail Transfer Agent (MTA) | Description: Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution. | Required action: Apply updates per vendor instructions. | Due date: 2022-07-10 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2019-10149
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-78
Feed CISA Known Exploited Vulnerabilities Catalog
Product Mail Transfer Agent (MTA)
Due Date 2022-07-10
Date Added 2022-01-10
Vendorproject Exim
Vulnerabilityname Exim Mail Transfer Agent (MTA) Improper Input Validation
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
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\"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"exim\", \"product\": \"exim\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.92\"}]}], \"references\": [{\"url\": \"http://www.openwall.com/lists/oss-security/2019/06/05/2\", \"name\": \"[oss-security] 20190605 Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploit\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://usn.ubuntu.com/4010-1/\", \"name\": \"USN-4010-1\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2019/06/05/3\", \"name\": \"[oss-security] 20190605 Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploit\", \"tags\": [\"mailing-list\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2019/06/05/4\", \"name\": \"[oss-security] 20190605 Re: CVE-2019-10149: Exim 4.87 to 4.91: possible remote exploit\", \"tags\": [\"mailing-list\"]}, {\"url\": 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      "cveMetadata": "{\"cveId\": \"CVE-2019-10149\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T23:45:35.245Z\", \"dateReserved\": \"2019-03-27T00:00:00.000Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2019-06-05T00:00:00.000Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.