What is CVE-2017-8854?

CVE-2017-8854 is a high-severity vulnerability in Wolfssl, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-05-09.

How severe is CVE-2017-8854?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in Wolfssl

CVE-2017-8854

wolfSSL before 3.10.2 has an out-of-bounds memory access with loading crafted DH parameters, aka a buffer overflow triggered by a malformed temporary DH file.

Vulnerability class: Buffer Overflow

Published 2017-05-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Wolfssl

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

github.com/wolfSSL/wolfssl/releases/tag/v3.10.2-stable (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-8854?: CVE-2017-8854 is a high-severity vulnerability in Wolfssl, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-05-09.
How severe is CVE-2017-8854?: High severity. CVSS v3 base score is 7.8 out of 10.