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TI-2021-13969 Aliases CVE-2021-34979GHSA-4873-p9vm-3mmf

Buffer overflow in NETGEAR R6260

Priority MEDIUM 41CWE-120Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6260 1.1.0.78_1.0.1 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of SOAP requests. When parsing the SOAPAction header, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13512.

Why it matters now

EPSS 0.01419 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
NETGEARR62601.1.0.78_1.0.1—No fix listedCNA
  • R6260 VendorNETGEAR Affected 1.1.0.78_1.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:netgear:r6260_firmware:1.1.0.78_1.0.1:*:*:*:*:*:*:*1.1.0.78_1.0.1VulnerableNETGEAR
cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:*not specified by NVDRunning onNETGEAR
  • cpe:2.3:o:netgear:r6260_firmware:1.1.0.78_1.0.1:*:*:*:*:*:*:* Versions 1.1.0.78_1.0.1 Vulnerable ·NETGEAR
  • cpe:2.3:h:netgear:r6260:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NETGEAR

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34979
  2. 2026-10-03 Alias added: GHSA-4873-p9vm-3mmf

References

Advisory 2

  • TI-2021-20598 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
  • TI-2020-16934 Authentication bypass in NETGEAR Multiple Routers CVSS 3.1HIGH 8.8
  • TI-2021-20588 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
  • TI-2021-16116 Certain NETGEAR devices are affected by lack of access control at the function level. CVSS 3.1CRITICAL 10.0
  • TI-2020-16335 Certain NETGEAR devices are affected by authentication bypass. CVSS 3.1CRITICAL 9.8
  • TI-2021-20724 Certain NETGEAR devices are affected by a stack-based buffer overflow by an… CVSS 3.1CRITICAL 9.8
See all 57 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences