What is the CVSS score of CVE-2021-25310?

CVE-2021-25310 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 4.6%.

Is there a public PoC exploit available for CVE-2021-25310?

Yes, a public proof-of-concept exploit is available for CVE-2021-25310. Prioritise patching immediately. EPSS: 4.6%.

Linksys Wrt160Nl Firmware CVE-2021-25310

HIGH

OS Command Injection (CWE-78)

2021-02-02 cve@mitre.org

Linksys Command Injection Linksys Wrt160Nl Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Feb 02, 2021 - 15:15 nvd

HIGH 8.8

DescriptionNVD

The administration web interface on Belkin Linksys WRT160NL 1.0.04.002_US_20130619 devices allows remote authenticated attackers to execute system commands with root privileges via shell metacharacters in the ui_language POST parameter to the apply.cgi form endpoint. This occurs in do_upgrade_post in mini_httpd. NOTE: This vulnerability only affects products that are no longer supported by the maintaine

AnalysisAI

The administration web interface on Belkin Linksys WRT160NL 1.0.04.002_US_20130619 devices allows remote authenticated attackers to execute system commands with root privileges via shell. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. The administration web interface on Belkin Linksys WRT160NL 1.0.04.002_US_20130619 devices allows remote authenticated attackers to execute system commands with root privileges via shell metacharacters in the ui_language POST parameter to the apply.cgi form endpoint. This occurs in do_upgrade_post in mini_httpd. NOTE: This vulnerability only affects products that are no longer supported by the maintaine Affected products include: Belkin Linksys Wrt160Nl Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.