Dell PowerProtect Cyber Recovery <20.3: Symlink Following Script Injection
CVE-2026-79939 Published on August 26, 2026
Dell PowerProtect Cyber Recovery, versions Prior to 20.3, contain an UNIX Symbolic Link (Symlink) Following vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Script injection.
Vulnerability Analysis
CVE-2026-79939 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a high impact on integrity, and a small impact on availability.
Weakness Type
What is a Symlink following Vulnerability?
The software, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the software to operate on unauthorized files. A software system that allows UNIX symbolic links (symlink) as part of paths whether in internal code or through user input can allow an attacker to spoof the symbolic link and traverse the file system to unintended locations or access arbitrary files. The symbolic link can permit an attacker to read/write/corrupt a file that they originally did not have permissions to access.
CVE-2026-79939 has been classified to as a Symlink following vulnerability or weakness.
Affected Versions
Dell Power Protect Cyber Recovery:- Before 20.3.0.0 is affected.
- Before osupdate-15.4.0-19.bin is affected.
- Before osupdate-15.6.1-1.bin is affected.