CVE-2018-25222

SC v7.16 Stack-Based Buffer Overflow Remote Code Execution

8.6 High

SC v7.16 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying oversized input that exceeds buffer boundaries. Attackers can craft malicious input strings exceeding 1052 bytes to overwrite the instruction pointer and execute shellcode in the application context.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.14%Up 0.1 points since Mar 28, 2026

What each source reports

CVE List Score used 8.6

SC v7.16 Stack-Based Buffer Overflow Remote Code Execution

Record: CVE-2018-25222
CVSS 4.0: 8.6 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

EUVDEUVD-2018-21702 8.6

Record: EUVD-2018-21702
CVSS 4.0: 8.6 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-g5hv-3r2w-5ch9 8.6

SC v7.16 contains a stack-based buffer overflow vulnerability that allows local attackers to...

Record: GHSA-g5hv-3r2w-5ch9
CVSS 4.0: 8.6 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

NVD 8.6

Record: CVE-2018-25222
CVSS 4.0: 8.6 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSVDEBIAN-CVE-2018-25222 8.6

Record: DEBIAN-CVE-2018-25222
CVSS 4.0: 8.6 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated: 2026-11-02

OSVUBUNTU-CVE-2018-25222 8.6

Record: UBUNTU-CVE-2018-25222
CVSS 4.0: 8.6 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1: 8.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`sc` Debian:12	All versions, plus listed versions 7.16-1.1.2-17.16-1.1.3-17.16-4.17.16-4.27.16-4.3	None known
`sc` Debian:13	All versions, plus listed versions 7.16-1.1.2-17.16-1.1.3-1	None known
`sc` Debian:14	All versions, plus listed versions 7.16-1.1.2-17.16-1.1.3-1	None known
`sc` Ubuntu:16.04:LTS	All versions, plus listed versions 7.16-47.16-4build17.16-4ubuntu1	None known
`sc` Ubuntu:18.04:LTS	All versions, plus listed versions 7.16-4ubuntu17.16-4ubuntu2	None known
`sc` Ubuntu:20.04:LTS	All versions, plus listed versions 7.16-4ubuntu3	None known
`sc` Ubuntu:22.04:LTS	All versions, plus listed versions 7.16-4ubuntu3	None known
`sc` Ubuntu:24.04:LTS	All versions, plus listed versions 7.16-4ubuntu37.16-4.1	None known
`sc` Ubuntu:25.10	All versions, plus listed versions 7.16-1.1.2-1	None known
`sc` Ubuntu:26.10	All versions, plus listed versions 7.16-1.1.3-1	None known
`sc` Ubuntu:26.04:LTS	All versions, plus listed versions 7.16-1.1.2-17.16-1.1.3-1	None known

History

History
Recorded	Changed	Sources
Nov 10, 2026	facts
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-25222 is a high vulnerability (CVSS 8.6) in Sc, published March 28, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. No source names a fixed version.