Integer overflow in Siemens Cp_1543-1

CVE-2021-41991

The in-memory certificate cache in strongSwan before 5.9.4 has a remote integer overflow upon receiving many requests with different certificates to fill the cache and later trigger the replacement of cache entries. The code attempts to se…

Vulnerability class: Integer Overflow

EPSS: 0.048 (90.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-41991?
CVE-2021-41991 is a high-severity vulnerability in Siemens Cp_1543-1, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2021-10-18.
How severe is CVE-2021-41991?
High severity. CVSS v3 base score is 7.5 out of 10.