CVE-2022-27644

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloading of files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-15797.

Published: 2023-03-29 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-27644 is rated Moderate Risk (44.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.34%). Review affected assets and schedule remediation.

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-2022-27644

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 0.15% 0.34% +0.19%
2 2026-05-17 0.14% 0.15% +0.01%
3 2026-04-16 — 0.14% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-27644

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: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.
 2.8 5.9 [email protected]
5.0 3.0 MEDIUM
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L 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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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:L)
Some sensitive info could get out, but not a total data dump.
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.
 1.6 3.4 [email protected]

Weakness enumeration for CVE-2022-27644

Affected software / configurations for CVE-2022-27644

Vendor Product Version Raw CPE
netgear r6400_firmware < 1.0.4.126 cpe:2.3:o:netgear:r6400_firmware:*:*:*:*:*:*:*:*
netgear r6700_firmware < 1.0.4.126 cpe:2.3:o:netgear:r6700_firmware:*:*:*:*:*:*:*:*
netgear r6900p_firmware < 1.3.3.148 cpe:2.3:o:netgear:r6900p_firmware:*:*:*:*:*:*:*:*
netgear r7000_firmware < 1.0.11.134 cpe:2.3:o:netgear:r7000_firmware:*:*:*:*:*:*:*:*
netgear r7000p_firmware < 1.3.3.148 cpe:2.3:o:netgear:r7000p_firmware:*:*:*:*:*:*:*:*
netgear r7850_firmware < 1.0.5.84 cpe:2.3:o:netgear:r7850_firmware:*:*:*:*:*:*:*:*
netgear r7960p_firmware < 1.4.3.88 cpe:2.3:o:netgear:r7960p_firmware:*:*:*:*:*:*:*:*
netgear r8000_firmware < 1.0.4.84 cpe:2.3:o:netgear:r8000_firmware:*:*:*:*:*:*:*:*
netgear r8000p_firmware < 1.4.3.88 cpe:2.3:o:netgear:r8000p_firmware:*:*:*:*:*:*:*:*
netgear rax200_firmware < 1.0.6.138 cpe:2.3:o:netgear:rax200_firmware:*:*:*:*:*:*:*:*
netgear rax75_firmware < 1.0.6.138 cpe:2.3:o:netgear:rax75_firmware:*:*:*:*:*:*:*:*
netgear rax80_firmware < 1.0.6.138 cpe:2.3:o:netgear:rax80_firmware:*:*:*:*:*:*:*:*
netgear rs400_firmware < 1.5.1.86 cpe:2.3:o:netgear:rs400_firmware:*:*:*:*:*:*:*:*
netgear cbr40_firmware < 2.5.0.28 cpe:2.3:o:netgear:cbr40_firmware:*:*:*:*:*:*:*:*
netgear lbr1020_firmware < 2.7.4.2 cpe:2.3:o:netgear:lbr1020_firmware:*:*:*:*:*:*:*:*
netgear lbr20_firmware < 2.7.4.2 cpe:2.3:o:netgear:lbr20_firmware:*:*:*:*:*:*:*:*
netgear rbr10_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbr10_firmware:*:*:*:*:*:*:*:*
netgear rbr20_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbr20_firmware:*:*:*:*:*:*:*:*
netgear rbr40_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbr40_firmware:*:*:*:*:*:*:*:*
netgear rbr50_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbr50_firmware:*:*:*:*:*:*:*:*
netgear rbs10_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbs10_firmware:*:*:*:*:*:*:*:*
netgear rbs20_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbs20_firmware:*:*:*:*:*:*:*:*
netgear rbs40_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbs40_firmware:*:*:*:*:*:*:*:*
netgear rbs50_firmware < 2.7.4.24 cpe:2.3:o:netgear:rbs50_firmware:*:*:*:*:*:*:*:*

References for CVE-2022-27644

cvelogic Threat Intelligence