Vulnerability · Published Sep 10, 2021 · Assigned by qnap

CVE-2021-28816Stack Buffer Overflow Vulnerabilities in QTS, QuTS hero, and QuTScloud

High 7.6

In plain English

A high-severity out-of-bounds write in QTS from QNAP Systems Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).

Severity (CVSS 3.1)7.6High
Exploit odds (30 days)0.9%top 39.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A stack buffer overflow vulnerability has been reported to affect QNAP device running QTS, QuTScloud, QuTS hero. If exploited, this vulnerability allows attackers to execute arbitrary code. We have already fixed this vulnerability in the following versions of QTS, QuTScloud, QuTS hero: QTS 4.5.4.1715 build 20210630 and later QTS 5.0.0.1716 build 20210701 and later QTS 4.3.3.1693 build 20210624 and later QTS 4.3.6.1750 build 20210730 and later QuTScloud c4.5.6.1755 and later QuTS hero h4.5.4.1771 build 20210825 and later

Affected products (as reported)

VendorProductVersions
QNAP Systems Inc. QTS unspecified – before 4.5.4.1715 build 20210630unspecified – before 5.0.0.1716 build 20210701unspecified – before 4.3.3.1693 build 20210624unspecified – before 4.3.6.1750 build 20210730
QNAP Systems Inc. QuTScloud unspecified – before c4.5.6.1755
QNAP Systems Inc. QuTS hero unspecified – before h4.5.4.1771 build 20210825

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

References