An exploitable firmware modification vulnerability was discovered in certain Netgear…
Priority HIGH 68CWE-494Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-494.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00574 47th percentileScored 2026-11-07
Public exploit Yes 9 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:wnr612v2_firmware:*:*:*:*:*:*:*:* | up to 1.0.0.3 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wnr612v2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:dgn1000v3_firmware:*:*:*:*:*:*:*:* | up to 1.0.0.22 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:dgn1000v3:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:d6100_firmware:*:*:*:*:*:*:*:* | up to 1.0.0.63 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:d6100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:wnr1000v2_firmware:*:*:*:*:*:*:*:* | up to 1.1.2.60 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wnr1000v2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:xavn2001v2_firmware:*:*:*:*:*:*:*:* | up to 0.4.0.7 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:xavn2001v2:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:wnr612v2_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.0.3 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wnr612v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:dgn1000v3_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.0.22 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:dgn1000v3:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:d6100_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.0.63 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:d6100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:wnr1000v2_firmware:*:*:*:*:*:*:*:* Versions up to 1.1.2.60 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wnr1000v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:xavn2001v2_firmware:*:*:*:*:*:*:*:* Versions up to 0.4.0.7 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:xavn2001v2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:netgear:wnr2200_firmware:*:*:*:*:*:*:*:* | up to 1.0.1.102 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wnr2200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:wnr2500_firmware:*:*:*:*:*:*:*:* | up to 1.0.0.34 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:wnr2500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:* | up to 1.0.3.6 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
| cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* | up to 1.0.3.6 | Vulnerable | NETGEAR |
| cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NETGEAR |
- cpe:2.3:o:netgear:wnr2200_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.1.102 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wnr2200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:wnr2500_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.0.34 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:wnr2500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r8900_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.3.6 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r8900:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
- cpe:2.3:o:netgear:r9000_firmware:*:*:*:*:*:*:*:* Versions up to 1.0.3.6 Vulnerable ·NETGEAR
- cpe:2.3:h:netgear:r9000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-23110
- 2026-10-03 Alias added: GHSA-6fpf-rgcx-jmrx
References
Exploit 9
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/SJCGkb-9o
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/r1Z4BX-5i
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/H1lIcXbco
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/ryjVZz-5s
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1t47Ebqj
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1BNhbWqi
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/HyZRxmb9s
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/BkBPIeGco
- https://hackmd.io/%40slASVrz_SrW7NQCsunofeA/S1qWglM5o
Advisory 1
More NETGEAR D6100 Firmware vulnerabilities
- TI-2016-08250 The NETGEAR WNR2000v5 router contains a buffer overflow in the hidden_lang_avi parameter… KEVCVSS 3.1CRITICAL 9.8
- TI-2017-13916 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
- TI-2017-13914 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
- TI-2018-15170 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
- TI-2018-15075 Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. CVSS 3.1HIGH 8.8
- TI-2018-15182 Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. CVSS 3.1HIGH 8.8
Sources
- CVE-2023-23110 · CVE Program
- CVE-2023-23110 · NVD
- FIRST EPSS
- GHSA-6fpf-rgcx-jmrx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences