CVE-2022-20825Network attack vector

Unauthenticated root command execution via crafted HTTP request

Published Jun 15, 2022 · Updated Nov 1, 2024

Stack-based buffer overflow in Cisco RV110W, RV130, RV130W, and RV215W router firmware allows remote attackers to execute root commands. Insufficient validation lets crafted incoming HTTP packets overflow a stack buffer in the web management interface. The interface is always reachable from the LAN and is WAN-accessible only when remote management is enabled; exploitation grants root-level command execution or reboots the device.

CVSS severity9.8
Critical
EPSS probability3.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Cisco RV110W, RV130, RV130W, and RV215W router firmware allows remote attackers to execute root commands. Insufficient validation lets crafted incoming HTTP packets overflow a stack buffer in the web management interface. The interface is always reachable from the LAN and is WAN-accessible only when remote management is enabled; exploitation grants root-level command execution or reboots the device.

The record

CVE
CVE-2022-20825
Published
Jun 15, 2022
Updated
Nov 1, 2024
Vendor
ClamAV
Product
Cisco Small Business RV Series Router Firmware
Classifications
CWE-787, CWE-121, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ClamAV · Cisco Small Business RV Series Router Firmwareversion=n/a

Published CVSS scores

10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8Cisco Systems, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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