CVE-2022-27597 [Low] | Out-of-bounds Read in Qvr

A vulnerability has been reported to affect QNAP operating systems. If exploited, the out-of-bounds read vulnerability allows remote authenticated administrators to get secret values. The vulnerability affects the following QNAP operating systems: QTS, QuTS hero, QuTScloud, QVP (QVR Pro appliances) We have already fixed the vulnerability in the following versions: QTS 5.0.1.2346 build 20230322 and later QuTS hero h5.0.1.2348 build 20230324 and later

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-05-17	0.35%	0.16%	-0.19%
2	2026-04-10	0.19%	0.35%	+0.16%
3	2026-03-30	—	0.19%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-05-17

0.35%

0.16%

-0.19%

2026-04-10

0.19%

0.35%

+0.16%

2026-03-30

—

0.19%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
2.7	3.1	LOW	`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N` 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:L) Some sensitive info could get out, but not a total data dump. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	1.2	1.4	[email protected]
2.7	3.1	LOW	`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N` 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:L) Some sensitive info could get out, but not a total data dump. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	1.2	1.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

2.7

3.1

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N 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:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

1.2

1.4

[email protected]

2.7

3.1

LOW

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N 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:L): Some sensitive info could get out, but not a total data dump.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

1.2

1.4

[email protected]

Weakness enumeration for CVE-2022-27597

Affected software / configurations for CVE-2022-27597

Vendor	Product	Version	Raw CPE
qnap	qvr	—	cpe:2.3:a:qnap:qvr:-:::::::*
qnap	qts	< 5.0.1.2346	cpe:2.3:o:qnap:qts::::::::
qnap	quts_hero	< h5.0.1.2348	cpe:2.3:o:qnap:quts_hero::::::::
qnap	qutscloud	—	cpe:2.3:o:qnap:qutscloud:-:::::::*
qnap	qvp-41b_firmware	—	cpe:2.3:o:qnap:qvp-41b_firmware:-:::::::*
qnap	qvp-63b_firmware	—	cpe:2.3:o:qnap:qvp-63b_firmware:-:::::::*
qnap	qvp-85b_firmware	—	cpe:2.3:o:qnap:qvp-85b_firmware:-:::::::*
qnap	qvp-21a_firmware	—	cpe:2.3:o:qnap:qvp-21a_firmware:-:::::::*
qnap	qvp-41a_firmware	—	cpe:2.3:o:qnap:qvp-41a_firmware:-:::::::*
qnap	qvp-63a_firmware	—	cpe:2.3:o:qnap:qvp-63a_firmware:-:::::::*
qnap	qvp-85a_firmware	—	cpe:2.3:o:qnap:qvp-85a_firmware:-:::::::*

References for CVE-2022-27597

URL	Tags
https://www.qnap.com/en/security-advisory/qsa-23-06	Vendor Advisory

URL

CVE-2022-27597 | QTS, QuTS hero, QuTScloud, QVP (QVR Pro appliances)

Exploit prediction scoring system (EPSS) score for CVE-2022-27597

Common vulnerability scoring system (CVSS) metrics for CVE-2022-27597

Weakness enumeration for CVE-2022-27597

Affected software / configurations for CVE-2022-27597

References for CVE-2022-27597