CVE-2026-21977 Information disclosure in Oracle Zero Data Loss Recovery Appliance Software
An unauthenticated attacker can gain unauthorized read access to a subset of data in Oracle Zero Data Loss Recovery Appliance Software via network access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-21977?
CVE-2026-21977 is a low-severity vulnerability in Oracle Zero Data Loss Recovery Appliance Software, published on 20 Jan 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Vulnerability in the Oracle Zero Data Loss Recovery Appliance Software product of Oracle Zero Data Loss Recovery Appliance (component: Security). Supported versions that are affected are 23.1.0-23.1.202509. Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Oracle Zero Data Loss Recovery Appliance Software. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Zero Data Loss Recovery Appliance Software accessible data. CVSS 3.1 Base Score 3.1 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N).
Which versions are affected by CVE-2026-21977?
How do I fix CVE-2026-21977?
No fix has been published for CVE-2026-21977 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-21977 being exploited?
There is no known exploitation of CVE-2026-21977 in the wild and no public exploit code.
Sources
Also known as GHSA-j6xw-536h-888x.