Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) Affecting github.com/fleetdm/fleet/v4/server/mdm/apple package, versions >=4.28.0 <4.80.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published2 Mar 2026
- disclosed26 Feb 2026
- creditUnknown
Introduced: 26 Feb 2026
CVE-2026-23999 Â (opens in a new tab)How to fix?
Upgrade github.com/fleetdm/fleet/v4/server/mdm/apple to version 4.80.1 or higher.
Overview
Affected versions of this package are vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) due to the use of a predictable algorithm for generating device lock and wipe PINs based solely on the current Unix timestamp. An attacker can gain unauthorized access to a locked device by predicting the correct PIN within a limited search window.
Note: This is only exploitable if the attacker has physical access to the device and knowledge of the approximate lock time.