MEDIUM

CVE-2025-11187

CVSS v3

6.1

MEDIUM

EPSS Score

0.0%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cause a crash leading to Denial of Service for an application that parses untrusted PKCS#12 files. The buffer overflow may also potentially enable code execution depending on platform mitigations. When verifying a PKCS#12 file that u

Technical details

CVSS v3 Vector
3.1
Published
1/27/2026
Last Modified
3/20/2026

Frequently asked questions

What is CVE-2025-11187?

Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereference may cause a crash leading to Denial of Service for an application that parses untrusted PKCS#12 files. The buffer overflow may also potentially enable code execution depending on platform mitigations. When verifying a PKCS#12 file that u

Is CVE-2025-11187 actively exploited?

Active exploitation of CVE-2025-11187 has not been confirmed. The EPSS score is 0.0%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-11187?

CVE-2025-11187 has a CVSS v3 base score of 6.1 (MEDIUM severity), with vector string 3.1.

Is CVE-2025-11187 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.