What is CVE-2020-10551?

CVE-2020-10551 is a high-severity vulnerability in Tencent Qqbrowser, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2020-04-09.

How severe is CVE-2020-10551?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2020-10551 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Tencent Qqbrowser

CVE-2020-10551

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.

EPSS: 0.014 (69.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tencent Qqbrowser
N/a — versions n/a

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-10551?: CVE-2020-10551 is a high-severity vulnerability in Tencent Qqbrowser, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2020-04-09.
How severe is CVE-2020-10551?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-10551 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.