CVE-2019-11395

Mailcarrier vulnerability

CVSS

9.8

EPSS

14.6%

EPSS pct

96th

Exploited

No known

A buffer overflow in MailCarrier 2.51 allows remote attackers to execute arbitrary code via a long string, as demonstrated by SMTP RCPT TO, POP3 USER, POP3 LIST, POP3 TOP, or POP3 RETR.

Affected vendor

Tabslab

Affected product

Mailcarrier

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type (CWE)

CWE-787 — Out-of-bounds Write

Published

2019-04-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 14.6% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2019-11395

Confirm whether Tabslab Mailcarrier is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2019-11395.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-11395

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-11395 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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