CVE-2022-0742 [Critical] | Information Disclosure in Linux Kernel

CVE-2022-0742 is rated High Risk (67.1/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.21%). EPSS rose +1.29% 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	2025-11-21	0.92%	2.21%	+1.29%
2	2025-11-18	2.21%	0.92%	-1.29%
3	2025-07-19	—	2.21%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-11-21

0.92%

2.21%

+1.29%

2025-11-18

2.21%

0.92%

-1.29%

2025-07-19

—

2.21%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.1	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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: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: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.	3.9	5.2	[email protected]
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/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: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: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.	3.9	3.6	[email protected]
7.8	2.0	HIGH	`AV:N/AC:L/Au:N/C:N/I:N/A:C` 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:N) No confidentiality impact. Integrity impact (I:N) No integrity impact. Availability impact (A:C) Complete availability impact.	10.0	6.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.1

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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: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: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.

3.9

5.2

[email protected]

7.5

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/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: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: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.

3.9

3.6

[email protected]

7.8

2.0

HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C 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:N): No confidentiality impact.
Integrity impact (I:N): No integrity impact.
Availability impact (A:C): Complete availability impact.

10.0

6.9

[email protected]

OS Trackers for CVE-2022-0742

vendor	priority	summary	link
`debian`	unimportant	CVE-2022-0742 unimportant priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2022-0742
`redhat`	high	—	https://access.redhat.com/security/cve/CVE-2022-0742
`suse`	high	CVE-2022-0742 severity important: SUSE including 88 source package names (kernel-64kb-5.14.21-150400.22.1, kernel-64kb-5.14.21-150500.53.2, …), 319 product×package rows across 70 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (70 product lines)): Known Not Affected 242, Fixed 77.	https://www.suse.com/security/cve/CVE-2022-0742/
`ubuntu`	medium	CVE-2022-0742 medium priority: Ubuntu including 122 source packages (linux, linux-allwinner, …), 1255 status rows across 12 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): DNE 916, not-affected 162, released 117, ignored 60.	https://ubuntu.com/security/CVE-2022-0742

Affected software / configurations for CVE-2022-0742

Vendor	Product	Version	Raw CPE
linux	linux_kernel	>= 5.13, < 5.15.27	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	>= 5.16, < 5.16.13	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc1::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc2::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc3::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc4::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc5::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc6::::::
netapp	a400_firmware	—	cpe:2.3:o:netapp:a400_firmware:-:::::::*
netapp	aff_8300_firmware	—	cpe:2.3:o:netapp:aff_8300_firmware:-:::::::*
netapp	aff_8700_firmware	—	cpe:2.3:o:netapp:aff_8700_firmware:-:::::::*
netapp	fas_8300_firmware	—	cpe:2.3:o:netapp:fas_8300_firmware:-:::::::*
netapp	fas_8700_firmware	—	cpe:2.3:o:netapp:fas_8700_firmware:-:::::::*
netapp	h300e_firmware	—	cpe:2.3:o:netapp:h300e_firmware:-:::::::*
netapp	h300s_firmware	—	cpe:2.3:o:netapp:h300s_firmware:-:::::::*
netapp	h410c_firmware	—	cpe:2.3:o:netapp:h410c_firmware:-:::::::*
netapp	h410s_firmware	—	cpe:2.3:o:netapp:h410s_firmware:-:::::::*
netapp	h500e_firmware	—	cpe:2.3:o:netapp:h500e_firmware:-:::::::*
netapp	h500s_firmware	—	cpe:2.3:o:netapp:h500s_firmware:-:::::::*
netapp	h700e_firmware	—	cpe:2.3:o:netapp:h700e_firmware:-:::::::*
netapp	h700s_firmware	—	cpe:2.3:o:netapp:h700s_firmware:-:::::::*

References for CVE-2022-0742

URL	Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2d3916f3189172d5c69d33065c3c21119fe539fc	Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20220425-0001/	Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/03/15/3	Mailing List Third Party Advisory

URL

CVE-2022-0742 | Memory leak in ICMP6 in Linux Kernel

Exploit prediction scoring system (EPSS) score for CVE-2022-0742

Common vulnerability scoring system (CVSS) metrics for CVE-2022-0742

Weakness enumeration for CVE-2022-0742

OS Trackers for CVE-2022-0742

Affected software / configurations for CVE-2022-0742

References for CVE-2022-0742