ALTOOLS update service 18.1 and earlier versions contains a local privilege escalation vulnerability due to insecure permission.

published 2019-08-13 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-4390

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits: 0; none known

ALTOOLS update service 18.1 and earlier versions contains a local privilege escalation vulnerability due to insecure permission. An attacker can overwrite an executable that is launched as a service to exploit this vulnerability and execute arbitrary code with system privileges.

Exploit prediction

0.39% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

ESTSOFT ALTOOLS Update Service

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls
CWE-732 Incorrect Permission Assignment for Critical Resource

References

boho.or.kr /krcert/secNoticeView.do?bulletin_writing_sequence=35116
third-party-advisory, vdb-entry

Sources

CVE List CVE-2019-12808
NVD CVE-2019-12808

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary