Deepin lastore-daemon Privilege Escalation via Unsigned .deb Installation
Published Jul 23, 2025
8.5
HIGHCVSS 4.0
EPSS 0.43%
Description
A local privilege escalation vulnerability exists in lastore-daemon, the system package manager daemon used in Deepin Linux (developed by Wuhan Deepin Technology Co., Ltd.). In versions 0.9.53-1 (Deepin 15.5) and 0.9.66-1 (Deepin 15.7), the D-Bus configuration permits any user in the sudo group to invoke the InstallPackage method without password authentication. By default, the first user created on Deepin is in the sudo group. An attacker with shell access can craft a .deb package containing a malicious post-install script and use dbus-send to install it via lastore-daemon, resulting in arbitrary code execution as root.
Affected products
-
- Version 0.9.53-1 (Deepin 15.5)StatusaffectedConstraints-
- Version 0.9.66-1 (Deepin 15.7)StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wuhan Deepin Technology Co., Ltd. | Deepin Linux | n/a |
|
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
1 other source (NVD) ▾
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
PoCAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Jul 23, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2025–2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (5 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.43% (0.00433) | 35.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.45% (0.00446) | 35.27th | v5 (v2026.06.15) |
| May 19, 2026 | 3.03% (0.03027) | 86.79th | v4 (v2025.03.14) |
| Oct 8, 2025 | 1.93% (0.01925) | 82.66th | v4 (v2025.03.14) |
| Jul 24, 2025 | 0.02% (0.00023) | 4.34th | v4 (v2025.03.14) |
References (6)
- https://github.com/linuxdeepin/lastore-daemon product
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/linux/local/lastore_daemon_dbus_priv_esc.rb exploit
- https://www.deepin.org/en/mirrors/releases/ product
- https://www.exploit-db.com/exploits/39433 exploit
- https://www.exploit-db.com/exploits/44523 exploit
- https://www.vulncheck.com/advisories/deepin-lastore-daemon-priv-esc third-party-advisory
Change history (0)
No recorded changes yet.