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Fencer Vulns
critical 9.0

CVE-2022-20827 json

Cisco Small Business RV Series Routers Vulnerabilities

published 2022-08-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-26077

cvss
9.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 80%
public exploits
0
none known

Summary

Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Patch / fix

  • cisco rv160_firmware 1.0.01.05
  • cisco rv160w_firmware 1.0.01.05
  • cisco rv260_firmware 1.0.01.05
  • cisco rv260p_firmware 1.0.01.05
  • cisco rv260w_firmware 1.0.01.05
  • cisco rv340_firmware 1.0.03.26
  • cisco rv340w_firmware 1.0.03.26
  • cisco rv345_firmware 1.0.03.26
  • cisco rv345p_firmware 1.0.03.26

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

1.98% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

  • Cisco Cisco Small Business RV Series Router Firmware

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.