CVEvulnerability

CVE-2021-1251

7.4 HIGH Published 2021-04-08 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-04-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0 ([email protected])
6.1 MEDIUM — AV:A/AC:L/Au:N/C:N/I:N/A:C
Weaknesses
CWE-119, CWE-401

Description

Multiple vulnerabilities exist in the Link Layer Discovery Protocol (LLDP) implementation for Cisco Small Business RV Series Routers. An unauthenticated, adjacent attacker could execute arbitrary code or cause an affected router to leak system memory or reload. A memory leak or device reload would cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

Affected configurations

• cisco rv132w firmware 1.0.1.14 • cisco rv132w firmware 1.0.3.20 • cisco rv134w firmware 1.0.1.14 • cisco rv134w firmware 1.0.3.20 • cisco rv160 firmware 1.0.1.14 • cisco rv160 firmware 1.0.3.20 • cisco rv160w firmware 1.0.1.14 • cisco rv160w firmware 1.0.3.20 • cisco rv260 firmware 1.0.1.14 • cisco rv260 firmware 1.0.3.20 • cisco rv260p firmware 1.0.1.14 • cisco rv260p firmware 1.0.3.20 • cisco rv260w firmware 1.0.1.14 • cisco rv260w firmware 1.0.3.20 • cisco rv340 firmware 1.0.1.14 • cisco rv340 firmware 1.0.3.20 • cisco rv340w firmware 1.0.1.14 • cisco rv340w firmware 1.0.3.20 • cisco rv345 firmware 1.0.1.14 • cisco rv345 firmware 1.0.3.20 • cisco rv345p firmware 1.0.1.14 • cisco rv345p firmware 1.0.3.20

Related

Weakness · CWE (2)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness
  • CWE-401 Missing Release of Memory after Effective Lifetime weakness

References