CVE-2019-16928 (GCVE-0-2019-16928)

Vulnerability from cvelistv5 – Published: 2019-09-27 20:07 – Updated: 2025-10-21 23:45
VLAI CISA Previdian
Summary
Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in string_vformat in string.c involving a long EHLO command.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-04 20:03 UTC
CWE
  • n/a
  • CWE-787 - Out-of-bounds Write
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2286 records in the last 180 days details
References
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: f48fd5ac-babe-4691-8657-68ea2a016924

Vulnerability ID: CVE-2019-16928

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEV entry: Exim Out-of-bounds Write Vulnerability | Affected: Exim / Exim Internet Mailer | Description: Exim contains an out-of-bounds write vulnerability which can allow for remote code execution. | Required action: Apply updates per vendor instructions. | Due date: 2022-03-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2019-16928
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-787
Feed CISA Known Exploited Vulnerabilities Catalog
Product Exim Internet Mailer
Due Date 2022-03-17
Date Added 2022-03-03
Vendorproject Exim
Vulnerabilityname Exim Out-of-bounds Write Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 9e913ad6-3635-4781-b93b-6ff63d5acd61

Vulnerability ID: CVE-2019-16928

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEVIntel entry: Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in... | Affected: Exim / Exim | CVSS: 9.8 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than CVE-2019-15846. There is a heap-based buffer overflow in...
Vendor Exim
Product Exim
Added Date 2022-03-03T00:00:00.000Z
Cvss Score 9.8
Epss Score None
Cvss Severity CRITICAL
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

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