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CVE-2022-20700

Warning

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code Elevate privileges Execute arbitrary commands Bypass authentication and authorization protections Fetch and run unsigned software Cause denial of service (DoS) For more information about these vulnerabilities, see the Details section of this advisory.

Data is provided by the National Vulnerability Database (NVD)
Cisco ≫ Rv340 Firmware Version <= 1.0.03.24
   Cisco ≫ Rv340 Version-
Cisco ≫ Rv340w Firmware Version <= 1.0.03.24
   Cisco ≫ Rv340w Version-
Cisco ≫ Rv345 Firmware Version <= 1.0.03.24
   Cisco ≫ Rv345 Version-
Cisco ≫ Rv345p Firmware Version <= 1.0.03.24
   Cisco ≫ Rv345p Version-
Cisco ≫ Rv160 Firmware Version <= 1.0.01.05
   Cisco ≫ Rv160 Version-
Cisco ≫ Rv160w Firmware Version <= 1.0.01.05
   Cisco ≫ Rv160w Version-
Cisco ≫ Rv260 Firmware Version <= 1.0.01.05
   Cisco ≫ Rv260 Version-
Cisco ≫ Rv260p Firmware Version <= 1.0.01.05
   Cisco ≫ Rv260p Version-
Cisco ≫ Rv260w Firmware Version <= 1.0.01.05
   Cisco ≫ Rv260w Version-

03.03.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Cisco Small Business RV Series Routers Stack-based Buffer Overflow Vulnerability

Vulnerability

A vulnerability in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker to do any of the following: Execute arbitrary code elevate privileges, execute arbitrary commands, bypass authentication and authorization protections, fetch and run unsigned software, or cause a denial of service (DoS).

Description

Apply updates per vendor instructions.

Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 28.06% 0.963
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 10 10 10
AV:N/AC:L/Au:N/C:C/I:C/A:C
psirt@cisco.com 10 3.9 6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CWE-121 Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.