How severe is CVE-2019-11395?

CVE-2019-11395 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-11395 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-11395?

CVE-2019-11395 affects Tabslab Mailcarrier. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-11395?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-11395 published?

CVE-2019-11395 was published on 2019-04-22 and last updated on 2026-06-17.

CVE-2019-11395

CVE-2019-11395 is a critical-severity vulnerability in Tabslab Mailcarrier with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tabslab Mailcarrier
Published: 2019-04-22
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2019-11395?: 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.
How severe is CVE-2019-11395?: CVE-2019-11395 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-11395 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-11395?: CVE-2019-11395 affects Tabslab Mailcarrier. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-11395?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-11395 published?: CVE-2019-11395 was published on 2019-04-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tabslab:mailcarrier:2.51:*:*:*:*:*:*:*

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