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NVD description
A flaw was found in popt, a command-line option parsing library. An off-by-one error in the poptStuffArgs function, when repeatedly called by a host application or through deep alias nesting, can lead to corruption of internal program data. This corruption could potentially enable a local attacker to execute arbitrary code if the host application then unsafely processes the altered data.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-18739 Off-by-One Error in popt Command-Line Parsing Library Enables Local Code Execution https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-18739
Post summary
The entry describes an off-by-one flaw in the popt library that could lead to local code execution, but provides no PoC, exploit, or patch information.