What is the CVSS score of CVE-2020-26567?

CVE-2020-26567 has a CVSS 3.1 base score of 5.5 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 17.2%.

Is there a public PoC exploit available for CVE-2020-26567?

Yes, a public proof-of-concept exploit is available for CVE-2020-26567. Prioritise patching immediately. EPSS: 17.2%.

Dsr 250N Firmware CVE-2020-26567

MEDIUM

Missing Authentication for Critical Function (CWE-306)

2020-10-08 cve@mitre.org

D-Link Authentication Bypass Dsr 250N Firmware

5.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Oct 08, 2020 - 13:15 nvd

MEDIUM 5.5

DescriptionNVD

An issue was discovered on D-Link DSR-250N before 3.17B devices. The CGI script upgradeStatusReboot.cgi can be accessed without authentication. Any access reboots the device, rendering it therefore unusable for several minutes.

AnalysisAI

An issue was discovered on D-Link DSR-250N before 3.17B devices. Rated medium severity (CVSS 5.5), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. An issue was discovered on D-Link DSR-250N before 3.17B devices. The CGI script upgradeStatusReboot.cgi can be accessed without authentication. Any access reboots the device, rendering it therefore unusable for several minutes. Affected products include: Dlink Dsr-250N Firmware. Version information: before 3.17.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.