CVE-2026-5268: An authentication bypass vulnerability exists in the default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated at
An authentication bypass vulnerability exists in
the default SFTP server component utilized across the Ciena products listed. This vulnerability allows a remote, unauthenticated attacker to bypass
security controls and gain unauthorized access to the underlying filesystem.
Successful exploitation could allow an attacker to read or modify system files.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-5268
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-52680.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-5268 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for An authentication bypass
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-14262: The Simple JWT Login – Allows you to use JWT on REST endpoints. plugin for WordPress is vulner…nvd · 2026-07-11
- criticalCVE-2026-57807: Authentication Bypass Using an Alternate Path or Channel vulnerability in miniOrange Security …nvd · 2026-07-10
- criticalCVE-2026-12761: The miniOrange Social Login and Register (Discord, Google, Twitter, LinkedIn) plugin for WordP…nvd · 2026-07-10
- criticalGHSA-xqp3-jq6g-x3qm: File Browser: Authentication Bypass via Proxy Auth Header Forgeryghsa · 2026-07-10
- highCVE-2026-56305: Capgo before 12.128.2 contains an authentication bypass vulnerability in the password change e…nvd · 2026-07-10
- highCVE-2026-22659: FlaskBB through 2.2.0, fixed in commit acc88cf, contains an authorization bypass vulnerability…nvd · 2026-07-10
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