HIGH
CVE-2025-70887
Published: March 25, 2026· Updated: Apr 1, 2026
8.8
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:16.3th
Official Description
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
Technical Analysis
CVE-2025-70887 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
ralphje1 product
signify
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (5)
→
https://github.com/mtrojnar/osslsigncode/issues/475Not Applicable
→
https://github.com/mtrojnar/osslsigncode/pull/477Not Applicable
→
→
https://github.com/ralphje/signify/issues/60Issue Tracking
Quick Facts
CVE IDCVE-2025-70887
CVSS Score8.8 / 10
SeverityHIGH
CISA KEVNo
EPSS (30d)0.05%
Affected1 vendor
PublishedMar 25, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2025-70887 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.