What is CVE-2025-70887?

CVE-2025-70887 is a high-severity vulnerability in Ralphje Signify, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-03-25.

How severe is CVE-2025-70887?

High severity. CVSS v3 base score is 8.8 out of 10.

Privilege escalation in Ralphje Signify

CVE-2025-70887

An issue in ralphje Signify before v.0.9.2 allows a remote attacker to escalate privileges via the signed_data.py and the context.py components

Vulnerability class: Privilege Escalation

Published 2026-03-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (25.4th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

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

Affected products

Ralphje Signify

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

github.com/ralphje/signify/issues/60 (Issue Tracking)
github.com/ralphje/signify/commit/64f21c0cc06cea0536370686ca3ba7a01e4adaa8 (Patch)
github.com/mtrojnar/osslsigncode/issues/475 (Not Applicable)
github.com/mtrojnar/osslsigncode/pull/477 (Not Applicable)
github.com/mtrojnar/osslsigncode/releases/tag/2.11 (Not Applicable)

Frequently asked questions

What is CVE-2025-70887?: CVE-2025-70887 is a high-severity vulnerability in Ralphje Signify, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-03-25.
How severe is CVE-2025-70887?: High severity. CVSS v3 base score is 8.8 out of 10.