ByteOS Network

NVD Vulnerability Details :

CVE-2026-26201

Received

Source-security-advisories@github.com

Published At-19 Feb, 2026 | 20:25

Updated At-19 Feb, 2026 | 20:25

emp3r0r is a C2 designed by Linux users for Linux environments. Prior to version 3.21.2, multiple shared maps are accessed without consistent synchronization across goroutines. Under concurrent activity, Go runtime can trigger `fatal error: concurrent map read and map write`, causing C2 process crash (availability loss). Version 3.21.2 fixes this issue.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	7.0	HIGH	CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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

Type: Secondary

Version: 4.0

Base score: 7.0

Base severity: HIGH

Vector:

CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/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

Weaknesses

CWE ID	Type	Source
CWE-362	Primary	security-advisories@github.com
CWE-663	Primary	security-advisories@github.com

CWE ID: CWE-362

Type: Primary

Source: security-advisories@github.com

CWE ID: CWE-663

Type: Primary

Source: security-advisories@github.com

References

Hyperlink	Source	Resource
https://github.com/jm33-m0/emp3r0r/commit/ea4d074f081dac6293f3aec38f01def5f08d5af5	security-advisories@github.com	N/A
https://github.com/jm33-m0/emp3r0r/releases/tag/v3.21.2	security-advisories@github.com	N/A
https://github.com/jm33-m0/emp3r0r/security/advisories/GHSA-f5p9-j34q-pwcc	security-advisories@github.com	N/A