CVE-2021-1293
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMultiple 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceMultiple command injection vulnerabilities in the web-based management interface of Cisco RV160/RV260 series VPN routers allow unauthenticated remote attackers to execute arbitrary code as root due to improper validation of HTTP requests.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 1.0.01.02< 1.0.01.02< 1.0.01.02< 1.0.01.02< 1.0.01.02CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify router modelLocate the model number on the device label or access the web interface and check the Device Info or Status page to confirm the model (RV160, RV160W, RV260, RV260P, or RV260W)Affected if Model is any of RV160, RV160W, RV260, RV260P, or RV260W and the firmware version is below 1.0.01.02
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Check firmware versionAccess the web-based management interface, navigate to Administration > Firmware Upgrade or Status/Device Info page, and note the displayed firmware versionAffected if Firmware version is earlier than 1.0.01.02 for any of the affected models listed
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Verify web management interface is enabledLog into the router web interface, go to Administration > Management Interface or similar, and check if the web-based management access is enabledAffected if Web-based management interface is enabled and firmware version is vulnerable (below 1.0.01.02)
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Check management access restrictionsReview the management access settings to see if web management is restricted to specific IP addresses or subnets, or if it is accessible from all interfaces (WAN/LAN)Affected if Web management is accessible from untrusted interfaces or IP ranges and the firmware is vulnerable
The environment is affected if the router model is a Cisco RV160 or RV260 series variant and the installed firmware version is lower than 1.0.01.02 with the web-based management interface enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped1.0.01.02
Apply Cisco's firmware update for the affected RV series routers. If patching is not immediately possible, disable the web-based management interface or restrict access to trusted management networks.
Firmware version 1.0.01.02 for RV160/RV160W/RV260/RV260P/RV260W series
- Identify the specific router model (RV160, RV160W, RV260, RV260P, or RV260W) from your hardware
- Access the Cisco software download page at tools.cisco.com and locate the firmware download section for your router model
- Download firmware version 1.0.01.02 or later for your specific router model
- Log in to the router's web-based management interface as an administrator
- Navigate to the Administration or System section of the web interface
- Locate the Firmware Upgrade or Upload New Firmware option
- Upload and apply the downloaded firmware file (1.0.01.02)
- Allow the router to complete the upgrade process and reboot automatically
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-1293 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-1293 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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