CVE-2026-2521 is a critical memory corruption vulnerability affecting Open5GS up to version 2.7.6, specifically within the SGW-C component's sgwc_s5c_handle_create_session_response function. This vulnerability carries a CVSS score of 9.8, indicating a critical severity due to its remote attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not currently listed in CISA's KEV catalog, public exploit code is available, and the vulnerability has garnered significant community discussion, though no media coverage has been observed.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2.7.6CPE matchmatch criteria | cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.