What is CVE-2025-63675?

CVE-2025-63675 is a medium-severity vulnerability in Cryptidy, classified under Deserialization of Untrusted Data. CVSS score: 6.9/10. Published 2025-10-31.

How severe is CVE-2025-63675?

Medium severity. CVSS v3 base score is 6.9 out of 10.

Deserialization in Cryptidy

CVE-2025-63675

cryptidy through 1.2.4 allows code execution via untrusted data because pickle.loads is used. This occurs in aes_decrypt_message in symmetric_encryption.py.

Vulnerability class: Insecure Deserialization

Published 2025-10-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.9 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.003 (15.2th percentile), scored 2026-10-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000

Affected products

Cryptidy — versions 0
Netinvent Cryptidy

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

github.com/javiermorales36/cryptidy-analysis (Exploit, Third Party Advisory)
github.com/netinvent/cryptidy/blob/cebc9ffd54cc20679d15a1a43ca9a5da645b0c58/cry… (Product)

Frequently asked questions

What is CVE-2025-63675?: CVE-2025-63675 is a medium-severity vulnerability in Cryptidy, classified under Deserialization of Untrusted Data. CVSS score: 6.9/10. Published 2025-10-31.
How severe is CVE-2025-63675?: Medium severity. CVSS v3 base score is 6.9 out of 10.