CVE-2022-48196 [High] | Memory Corruption in Rax40 Firmware

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects RAX40 before 1.0.2.60, RAX35 before 1.0.2.60, R6400v2 before 1.0.4.122, R6700v3 before 1.0.4.122, R6900P before 1.3.3.152, R7000P before 1.3.3.152, R7000 before 1.0.11.136, R7960P before 1.4.4.94, and R8000P before 1.4.4.94.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	1.26%	0.94%	-0.32%
2	2026-01-05	0.45%	1.26%	+0.80%
3	2026-01-04	—	0.45%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

1.26%

0.94%

-0.32%

2026-01-05

0.45%

1.26%

+0.80%

2026-01-04

—

0.45%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.4	3.1	HIGH	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H` Click to expand Attack vector (AV:A) Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet. 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: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.	2.8	4.0	[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]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.4

3.1

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Click to expand

Attack vector (AV:A): Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
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: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.

2.8

4.0

[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]

Affected software / configurations for CVE-2022-48196

Vendor	Product	Version	Raw CPE
netgear	rax40_firmware	< 1.0.2.60	cpe:2.3:o:netgear:rax40_firmware::::::::
netgear	rax35_firmware	< 1.0.2.60	cpe:2.3:o:netgear:rax35_firmware::::::::
netgear	r6400v2_firmware	< 1.0.4.122	cpe:2.3:o:netgear:r6400v2_firmware::::::::
netgear	r6700v3_firmware	< 1.0.4.122	cpe:2.3:o:netgear:r6700v3_firmware::::::::
netgear	r6900p_firmware	< 1.3.3.152	cpe:2.3:o:netgear:r6900p_firmware::::::::
netgear	r7000p_firmware	< 1.3.3.152	cpe:2.3:o:netgear:r7000p_firmware::::::::
netgear	r7000_firmware	< 1.0.11.136	cpe:2.3:o:netgear:r7000_firmware::::::::
netgear	r7960p_firmware	< 1.4.4.94	cpe:2.3:o:netgear:r7960p_firmware::::::::
netgear	r8000p_firmware	< 1.4.4.94	cpe:2.3:o:netgear:r8000p_firmware::::::::

References for CVE-2022-48196

URL	Tags
https://kb.netgear.com/000065495/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2019-0208	Patch Vendor Advisory
https://www.bleepingcomputer.com/news/security/netgear-warns-users-to-patch-recently-fixed-wifi-router-bug/	Patch Third Party Advisory

URL

CVE-2022-48196

Exploit prediction scoring system (EPSS) score for CVE-2022-48196

Common vulnerability scoring system (CVSS) metrics for CVE-2022-48196

Weakness enumeration for CVE-2022-48196

Affected software / configurations for CVE-2022-48196

References for CVE-2022-48196