VYPR
← All advisories
Medium severity6.5NVD Advisory· Published May 5, 2022· Updated Jun 17, 2026

CVE-2021-44052

CVE-2021-44052

Description

An improper link resolution before file access ('Link Following') vulnerability has been reported to affect QNAP device running QuTScloud, QuTS hero, and QTS. If exploited, this vulnerability allows remote attackers to traverse the file system to unintended locations and read or overwrite the contents of unexpected files. We have already fixed this vulnerability in the following versions of QuTScloud, QuTS hero, and QTS: QuTScloud c5.0.1.1998 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTS hero h5.0.0.1986 build 20220324 and later QTS 4.3.4.1976 build 20220303 and later QTS 4.3.3.1945 build 20220303 and later QTS 4.2.6 build 20220304 and later QTS 4.3.6.1965 build 20220302 and later QTS 5.0.0.1986 build 20220324 and later QTS 4.5.4.1991 build 20220329 and later

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

21
  • QNAP Systems Inc./QuTScloudv5
    Range: unspecified
  • QNAP Systems Inc./QuTS herov5
    Range: unspecified
  • QNAP Systems Inc./QTSv5
    Range: unspecified
  • Qnap/QuTScloudllm-fuzzy2 versions
    c5.0.1.1998 and later+ 1 more
    • (no CPE)range: c5.0.1.1998 and later
    • cpe:2.3:o:qnap:qutscloud:*:*:*:*:*:*:*:*range: <c5.0.1.1998
  • Qnap/Quts Herollm-fuzzy2 versions
    h4.5.4.1971 build 20220310 and later+ 1 more
    • (no CPE)range: h4.5.4.1971 build 20220310 and later
    • cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*range: <h4.5.4.1771
  • Qnap/Qtsllm-fuzzy14 versions
    4.3.4.1976 build 20220303 and later+ 13 more
    • (no CPE)range: 4.3.4.1976 build 20220303 and later
    • cpe:2.3:a:qnap:qts:*:*:*:*:*:*:*:*range: >=5.0.0.1716,<5.0.0.1986
    • cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*range: >=4.3.3.0174,<4.3.3.1945
    • cpe:2.3:o:qnap:qts:4.2.6:build_20170517:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20190322:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20190730:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20190921:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20191107:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20200109:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20200421:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20200611:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20200821:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20210327:*:*:*:*:*:*
    • cpe:2.3:o:qnap:qts:4.2.6:build_20211215:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

1

News mentions

0

No linked articles in our index yet.