CVE-2025-70888

An issue in mtrojnar Osslsigncode affected at v2.10 and before allows a remote attacker to escalate privileges via the osslsigncode.c component

Published: 2026-03-25 Last update: 2026-04-02 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-70888 is rated Moderate Risk (50.5/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.13%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-70888

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-19 0.16% 0.13% -0.03%
2 2026-04-26 0.10% 0.16% +0.06%
3 2026-03-28 — 0.10% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-70888

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-70888

OS Trackers for CVE-2025-70888

vendor priority summary link
debian not yet assigned CVE-2025-70888 not yet assigned priority: Debian including 1 source packages (osslsigncode), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2025-70888
redhat critical — https://access.redhat.com/security/cve/CVE-2025-70888
ubuntu medium CVE-2025-70888 medium priority: Ubuntu including 1 source packages (osslsigncode), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): needs-triage 7. https://ubuntu.com/security/CVE-2025-70888

Affected software / configurations for CVE-2025-70888

Vendor Product Version Raw CPE
osslsigncode_project osslsigncode <= 2.10 cpe:2.3:a:osslsigncode_project:osslsigncode:*:*:*:*:*:*:*:*

References for CVE-2025-70888

URL Tags
https://github.com/mtrojnar/osslsigncode/issues/475 Issue Tracking Third Party Advisory
https://github.com/mtrojnar/osslsigncode/pull/477 Issue Tracking
https://github.com/ralphje/signify/issues/60 Issue Tracking Third Party Advisory
cvelogic Threat Intelligence