CVE-2023-45028 | QTS, QuTS hero, QuTScloud

An uncontrolled resource consumption vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to launch a denial-of-service (DoS) attack via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.5.2645 build 20240116 and later QuTS hero h5.1.5.2647 build 20240118 and later QuTScloud c5.1.5.2651 and later

Published: 2024-02-02 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-45028 is rated Low Risk (34.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.44%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-45028

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.03% 0.44% +0.40%
2 2025-11-21 0.22% 0.03% -0.18%
3 2025-11-18 — 0.22% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-45028

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.3 2.7 [email protected]
4.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 3.6 [email protected]

Weakness enumeration for CVE-2023-45028

Affected software / configurations for CVE-2023-45028

Vendor Product Version Raw CPE
qnap qts 5.1.0.2348 cpe:2.3:o:qnap:qts:5.1.0.2348:build_20230325:*:*:*:*:*:*
qnap qts 5.1.0.2399 cpe:2.3:o:qnap:qts:5.1.0.2399:build_20230515:*:*:*:*:*:*
qnap qts 5.1.0.2418 cpe:2.3:o:qnap:qts:5.1.0.2418:build_20230603:*:*:*:*:*:*
qnap qts 5.1.0.2444 cpe:2.3:o:qnap:qts:5.1.0.2444:build_20230629:*:*:*:*:*:*
qnap qts 5.1.0.2466 cpe:2.3:o:qnap:qts:5.1.0.2466:build_20230721:*:*:*:*:*:*
qnap qts 5.1.1.2491 cpe:2.3:o:qnap:qts:5.1.1.2491:build_20230815:*:*:*:*:*:*
qnap qts 5.1.2.2533 cpe:2.3:o:qnap:qts:5.1.2.2533:build_20230926:*:*:*:*:*:*
qnap qts 5.1.3.2578 cpe:2.3:o:qnap:qts:5.1.3.2578:build_20231110:*:*:*:*:*:*
qnap qts 5.1.4.2596 cpe:2.3:o:qnap:qts:5.1.4.2596:build_20231128:*:*:*:*:*:*
qnap qts 5.1.5.2645 cpe:2.3:o:qnap:qts:5.1.5.2645:-:*:*:*:*:*:*
qnap quts_hero h5.1.0.2409 cpe:2.3:o:qnap:quts_hero:h5.1.0.2409:build_20230525:*:*:*:*:*:*
qnap quts_hero h5.1.0.2424 cpe:2.3:o:qnap:quts_hero:h5.1.0.2424:build_20230609:*:*:*:*:*:*
qnap quts_hero h5.1.0.2453 cpe:2.3:o:qnap:quts_hero:h5.1.0.2453:build_20230708:*:*:*:*:*:*
qnap quts_hero h5.1.0.2466 cpe:2.3:o:qnap:quts_hero:h5.1.0.2466:build_20230721:*:*:*:*:*:*
qnap quts_hero h5.1.1.2488 cpe:2.3:o:qnap:quts_hero:h5.1.1.2488:build_20230812:*:*:*:*:*:*
qnap quts_hero h5.1.2.2534 cpe:2.3:o:qnap:quts_hero:h5.1.2.2534:build_20230927:*:*:*:*:*:*
qnap quts_hero h5.1.3.2578 cpe:2.3:o:qnap:quts_hero:h5.1.3.2578:build_20231110:*:*:*:*:*:*
qnap quts_hero h5.1.4.2596 cpe:2.3:o:qnap:quts_hero:h5.1.4.2596:build_20231128:*:*:*:*:*:*
qnap quts_hero h5.1.5.2647 cpe:2.3:o:qnap:quts_hero:h5.1.5.2647:-:*:*:*:*:*:*
qnap qutscloud c5.1.0.2498 cpe:2.3:o:qnap:qutscloud:c5.1.0.2498:build_20230822:*:*:*:*:*:*

References for CVE-2023-45028

cvelogic Threat Intelligence