Improper signature verification in Debian devscripts
Priority MEDIUM 49CWE-347Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-347.
Summary
It was discovered that uscan, a tool to scan/watch upstream sources for new releases of software, included in devscripts (a collection of scripts to make the life of a Debian Package maintainer easier), skips OpenPGP verification if the upstream source is already downloaded from a previous run even if the verification failed back then.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00275 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-8454
- 2026-10-03 Alias added: GHSA-mw9f-f52p-chpp
References
More Debian Devscripts vulnerabilities
- TI-2018-09361 scripts/grep-excuses.pl in Debian devscripts through 2.18.3 allows code execution through… CVSS 3.0CRITICAL 9.8
- TI-2013-05990 An issue exists in uscan in devscripts before 2.13.19, which could let a remote malicious… CVSS 3.1HIGH 8.8
Sources
- CVE-2025-8454 · CVE Program
- CVE-2025-8454 · NVD
- FIRST EPSS
- GHSA-mw9f-f52p-chpp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences