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CRITICAL

CVE-2018-11536

CVSS v3

9.8

CRITICAL

EPSS Score

1.7 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

md4c before 0.2.5 has a heap-based buffer overflow because md_split_simple_pairing_mark mishandles splits.

Technical details

Published
2018-05-29

Frequently asked questions

What is CVE-2018-11536?

md4c before 0.2.5 has a heap-based buffer overflow because md_split_simple_pairing_mark mishandles splits.

Is CVE-2018-11536 actively exploited?

Active exploitation of CVE-2018-11536 has not been confirmed. Its EPSS score was 1.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-11536?

CVE-2018-11536 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2018-11536 affecting your environment?

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