CVE-2020-3294

highpriority · track · 30EPSS 0.032 · 88 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

3.19% (88th) EPSS

CVSS 9 · high

Is it mine?

13 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No fix is available; mitigate or reduce exposure.

No fix availablecisco_csaf
No remediation is available at this time.

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–9

v2.09highAV:N/AC:L/Au:S/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 8 · impact 10

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.2 · impact 5.9

v3.07.2highCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.07.2highCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 1.2 · impact 5.9

v3.17.2highAV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.6mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-119USCWE-119US

affected products (13)

Products and version ranges known to be affected.

Cisco Cisco Small Business RV Series Router Firmware≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco Small Business RV016≤ 4.2.3.10fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV042≤ 4.2.3.10fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV042G≤ 4.2.3.10fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV082≤ 4.2.3.10fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV320≤ 1.5.1.05fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV325≤ 1.5.1.05fstec_bduRU
cisco rv016 firmware≤ 4.2.3.10nvdUScpe:2.3:o:cisco:rv016_firmware:*:*:*:*:*:*:*:*
cisco rv042 firmware≤ 4.2.3.10nvdUScpe:2.3:o:cisco:rv042_firmware:*:*:*:*:*:*:*:*
cisco rv042g firmware≤ 4.2.3.10nvdUScpe:2.3:o:cisco:rv042g_firmware:*:*:*:*:*:*:*:*
cisco rv082 firmware≤ 4.2.3.10nvdUScpe:2.3:o:cisco:rv082_firmware:*:*:*:*:*:*:*:*
cisco rv320 firmware≤ 1.5.1.05nvdUScpe:2.3:o:cisco:rv320_firmware:*:*:*:*:*:*:*:*
cisco rv325 firmware≤ 1.5.1.05nvdUScpe:2.3:o:cisco:rv325_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-rv-routers-stack-vUxHmnNzCisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities2020-06-17csaf · cisco_csafUS
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz"]

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd cisco_csaf NVD CVE.org MITRE

published 2020-06-18modified 2026-06-17

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+16119 more

references (6)

External citations — patches, advisories, analysis.

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