CVE-2020-10551 json
QQBrowser before 10.5.3870.400 installs a Windows service TsService.exe.
published 2020-04-09 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-3003
- cvss
- 7.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
QQBrowser before 10.5.3870.400 installs a Windows service TsService.exe. This file is writable by anyone belonging to the NT AUTHORITY\Authenticated Users group, which includes all local and remote users. This can be abused by local attackers to escalate privileges to NT AUTHORITY\SYSTEM by writing a malicious executable to the location of TsService.
Patch / fix
- tencent qqbrowser 10.5.3870.400
Exploit prediction
1.41% chance of exploitation in the next 30 days, higher than 72% 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 |
Classification
- Weakness
-
- CWE-732 Incorrect Permission Assignment for Critical Resource
References
-
seqred.pl
/en/cve-2020-10551-privilege-escalation-in-qqbrowser/
third-party-advisory
-
github.com
/seqred-s-a/CVE-2020-10551
third-party-advisory
Sources
- CVE List CVE-2020-10551
- NVD CVE-2020-10551
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