Deepin lastore-daemon Privilege Escalation via Unsigned .deb Installation

Published 15 mo ago 2025-07-23 · modified 4 mo ago 2026-06-17 · JSON

CVSS

8.5

v4.0 · CNA

CISA KEV

not known exploited

EPSS

0.5%

percentile 42%

Public exploits

none known

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.

CISA SSVC assessment

Exploitation: Proof of concept public
Automatable: no
Technical impact: total
Assessed: 15 mo ago 2025-07-23

Exploit prediction (EPSS)

0.48% probability of exploitation in the next 30 days, higher than 42% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CNA	4.0	8.5	`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`
CNA	4.0	8.5	`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`

Affected products

Wuhan Deepin Technology Co., Ltd. Deepin Linux

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality
CWE-269 Improper Privilege Management

References

exploit-db.com /exploits/39433 · exploit
raw.githubusercontent.com /rapid7/metasploit-framework/master/modules/exploits/linux/local/lastore_daemon_dbus_priv_ · exploit
github.com /linuxdeepin/lastore-daemon · product
deepin.org /en/mirrors/releases/ · product
exploit-db.com /exploits/44523 · exploit
vulncheck.com /advisories/deepin-lastore-daemon-priv-esc · third-party-advisory

Sources

CVE List: CVE-2016-15045
NVD: CVE-2016-15045

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.

Summary