CVE-2022-22995 [Critical] | Security Vulnerability in My Cloud Pr2100 Firmware

CVE-2022-22995 is rated High Risk (71.7/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.63%). EPSS rose +2.46% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.18%	2.63%	+2.46%
2	2025-11-21	1.65%	0.18%	-1.47%
3	2025-11-18	—	1.65%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.18%

2.63%

+2.46%

2025-11-21

1.65%

0.18%

-1.47%

2025-11-18

—

1.65%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
10.0	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:N) No account or special rights needed—anonymous or random user is enough. 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:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	3.9	6.0	[email protected]
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:N) No account or special rights needed—anonymous or random user is enough. 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:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]
7.5	2.0	HIGH	`AV:N/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	10.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

10.0

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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:N): No account or special rights needed—anonymous or random user is enough.
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:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L): Might cause slowdowns, glitches, or partial disruption—not a full brick.

3.9

6.0

[email protected]

9.8

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:N): No account or special rights needed—anonymous or random user is enough.
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:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

5.9

[email protected]

7.5

2.0

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand

Access vector (AV:N): Can be exploited remotely over network reachability.
Access complexity (AC:L): Exploitation conditions are straightforward and predictable.
Authentication (AU:N): No authentication is required.
Confidentiality impact (C:P): Partial confidentiality impact.
Integrity impact (I:P): Partial integrity impact.
Availability impact (A:P): Partial availability impact.

10.0

6.4

[email protected]

OS Trackers for CVE-2022-22995

vendor	priority	summary	link
`alpine`	—	CVE-2022-22995: 1 source package rows (netatalk); 6 state rows across 6 repos (3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 6, open 0.	https://security.alpinelinux.org/vuln/CVE-2022-22995
`debian`	not yet assigned	CVE-2022-22995 not yet assigned priority: Debian including 1 source packages (netatalk), 4 status rows across 4 suites (bullseye, forky, sid, trixie): resolved 4.	https://security-tracker.debian.org/tracker/CVE-2022-22995
`gentoo`	high	CVE-2022-22995: 1 GLSA(s) (202311-02), 1 atom(s) (net-fs/netatalk); latest impact high.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-22995
`suse`	high	CVE-2022-22995 severity important: SUSE including 3 source package names (libatalk12-3.1.0-3.22.1, netatalk-3.1.0-3.22.1, netatalk-devel-3.1.0-3.22.1), 5 product×package rows across 2 product lines (SUSE Linux Enterprise Software Development Kit 12 SP5, SUSE Linux Enterprise Workstation Extension 12 SP5): Fixed 5.	https://www.suse.com/security/cve/CVE-2022-22995/
`ubuntu`	medium	CVE-2022-22995 medium priority: Ubuntu including 1 source packages (netatalk), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 7, released 3, ignored 2.	https://ubuntu.com/security/CVE-2022-22995

Affected software / configurations for CVE-2022-22995

Vendor	Product	Version	Raw CPE
westerndigital	my_cloud_pr2100_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_pr2100_firmware::::::::
westerndigital	my_cloud_pr4100_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_pr4100_firmware::::::::
westerndigital	my_cloud_ex4100_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_ex4100_firmware::::::::
westerndigital	my_cloud_ex2_ultra_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_ex2_ultra_firmware::::::::
westerndigital	my_cloud_mirror_gen_2_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_mirror_gen_2_firmware::::::::
westerndigital	my_cloud_dl2100_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_dl2100_firmware::::::::
westerndigital	my_cloud_dl4100_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_dl4100_firmware::::::::
westerndigital	my_cloud_ex2100_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_ex2100_firmware::::::::
westerndigital	my_cloud_firmware	< 5.19.117	cpe:2.3:o:westerndigital:my_cloud_firmware::::::::
westerndigital	wd_cloud_firmware	< 5.19.117	cpe:2.3:o:westerndigital:wd_cloud_firmware::::::::
westerndigital	my_cloud_home_firmware	< 7.16-220	cpe:2.3:o:westerndigital:my_cloud_home_firmware::::::::
netatalk	netatalk	< 3.1.18	cpe:2.3:a:netatalk:netatalk::::::::
fedoraproject	fedora	37	cpe:2.3:o:fedoraproject:fedora:37:::::::*
fedoraproject	fedora	38	cpe:2.3:o:fedoraproject:fedora:38:::::::*
fedoraproject	fedora	39	cpe:2.3:o:fedoraproject:fedora:39:::::::*

References for CVE-2022-22995

URL	Tags
https://lists.debian.org/debian-lts-announce/2024/01/msg00000.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/55ROUJI22SHZX5EM23QAILZHI67EZQKW/	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T5CZZLFOTUP3QYHGHSDUNENGSLPJ6KGO/	Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XO34FWOIJI6V6PH2XY52WNBBARVWPJG2/	Mailing List
https://security.gentoo.org/glsa/202311-02	Issue Tracking Third Party Advisory
https://www.westerndigital.com/support/product-security/wdc-22005-netatalk-security-vulnerabilities	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/11/msg00026.html

URL

CVE-2022-22995 | Western Digital My Cloud OS 5 and My Cloud Home Unauthenticated Arbitrary File Write Vulnerability in Netatalk

Exploit prediction scoring system (EPSS) score for CVE-2022-22995

Common vulnerability scoring system (CVSS) metrics for CVE-2022-22995

Weakness enumeration for CVE-2022-22995

OS Trackers for CVE-2022-22995

Affected software / configurations for CVE-2022-22995

References for CVE-2022-22995