Vulnerability · Published Aug 15, 2025 · Assigned by VulDB

CVE-2025-9001LemonOS HTTP Client main.cpp HTTPGet stack-based overflow

Medium 5.3

In plain English

A medium-severity stack buffer overflow in LemonOS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)1.1%top 34.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was determined in LemonOS up to nightly-2024-07-12 on LemonOS. Affected by this issue is the function HTTPGet of the file /Applications/Steal/main.cpp of the component HTTP Client. The manipulation of the argument chunkSize leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
n/a	LemonOS	nightly-2024-07-12

Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

References

VDB-320030 | LemonOS HTTP Client main.cpp HTTPGet stack-based overflow vdb-entry, technical-description
VDB-320030 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #624974 | LemonOS Lemon OS nightly-2024-07-12 Buffer Overflow third-party-advisory
https://hkohi.ca/vulnerability/16 related
https://github.com/LemonOSProject/LemonOS/issues/60 exploit, issue-tracking