CVE-2023-23110

HIGH
7.4
CVSS Score
Published: February 2, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:36 AM UTC
18 products affected across 1 vendorR9000 FirmwareR8900 FirmwareD6100 Firmware

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Severity
HIGH7.4
Exploit prediction
EPSS 0.6%
SSVC
PoC

Description

An exploitable firmware modification vulnerability was discovered in certain Netgear products. The data integrity of the uploaded firmware image is ensured with a fixed checksum number. Therefore, an attacker can conduct a MITM attack to modify the user-uploaded firmware image and bypass the checksum verification. This affects WNR612v2 Wireless Routers 1.0.0.3 and earlier, DGN1000v3 Modem Router 1.0.0.22 and earlier, D6100 WiFi DSL Modem Routers 1.0.0.63 and earlier, WNR1000v2 Wireless Routers 1.1.2.60 and earlier, XAVN2001v2 Wireless-N Extenders 0.4.0.7 and earlier, WNR2200 Wireless Routers 1.0.1.102 and earlier, WNR2500 Wireless Routers 1.0.0.34 and earlier, R8900 Smart WiFi Routers 1.0.3.6 and earlier, and R9000 Smart WiFi Routers 1.0.3.6 and earlier.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 1.0.0.63
netgear-d6100 (same device)
v ≤ 1.0.0.22
netgear-dgn1000v3 (same device)
v ≤ 1.0.3.6
netgear-r8900 (same device)
v ≤ 1.0.3.6
netgear-r9000 (same device)
v ≤ 1.1.2.60
netgear-wnr1000v2 (same device)
v ≤ 1.0.1.102
netgear-wnr2200 (same device)
v ≤ 1.0.0.34
netgear-wnr2500 (same device)
v ≤ 1.0.0.3
netgear-wnr612v2 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-494

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