CVE-2021-1289

highpriority · track · 40EPSS 0.042 · 91 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

4.24% (91st) EPSS

CVSS 10 · high

Is it mine?

12 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code as the root user on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device.

remediations

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

A vendor fix is available.

FixedCisco Small Business RV Series Router Firmwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

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

10.0

010

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

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · psirt@cisco.com USexploitability 3.9 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Cisco PSIRT US

ssvc

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

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-472USCWE-472US

affected products (12)

Products and version ranges known to be affected.

Cisco Cisco Small Business RV Series Router Firmwareall versionscisco_csafUS
Cisco Cisco Small Business RV Series Router Firmware≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco Small Business RV160≤ 1.0.01.02fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV160W≤ 1.0.01.02fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV260≤ 1.0.01.02fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV260P≤ 1.0.01.02fstec_bduRU
Cisco Systems Inc. Cisco Small Business RV260W≤ 1.0.01.02fstec_bduRU
cisco rv160 vpn router firmware< 1.0.01.02nvdUScpe:2.3:o:cisco:rv160_vpn_router_firmware:*:*:*:*:*:*:*:*
cisco rv160w wireless-ac vpn router firmware< 1.0.01.02nvdUScpe:2.3:o:cisco:rv160w_wireless-ac_vpn_router_firmware:*:*:*:*:*:*:*:*
cisco rv260 vpn router firmware< 1.0.01.02nvdUScpe:2.3:o:cisco:rv260_vpn_router_firmware:*:*:*:*:*:*:*:*
cisco rv260p vpn router with poe firmware< 1.0.01.02nvdUScpe:2.3:o:cisco:rv260p_vpn_router_with_poe_firmware:*:*:*:*:*:*:*:*
cisco rv260w wireless-ac vpn router firmware< 1.0.01.02nvdUScpe:2.3:o:cisco:rv260w_wireless-ac_vpn_router_firmware:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-rv160-260-rce-XZeFkNHfCisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution Vulnerabilities2021-02-03csaf · cisco_csafUS
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code as the root user on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

published 2021-02-04modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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