Auth bypass in Dlink Dsr-250n
CVE-2020-26567
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.172 (97.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.172 · newest: 0.172 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.redteam-pentesting.de/advisories/rt-sa-2020-002 (Exploit, Patch, Third Party Advisory, Mitigation)
- seclists.org/fulldisclosure/2020/Oct/14 (Exploit, Patch, Mailing List, Third Party Advisory, Mitigation)
- packetstormsecurity.com/files/159516/D-Link-DSR-250N-Denial-Of-Service.html (Exploit, Patch, VDB Entry, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2020-26567?
- CVE-2020-26567 is a medium-severity vulnerability in Dlink Dsr-250n, classified under Missing Authentication for Critical Function. CVSS score: 5.5/10. Published 2020-10-08.
- How severe is CVE-2020-26567?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-26567 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.