CVE-2026-76989
liftoff-sr CIPster TCP Encapsulation Receive Path encap.cc out-of-bounds
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 20, 2026
- Updated
- Aug 25, 2026
- Reserved
- Aug 20, 2026
Description
A security vulnerability has been detected in liftoff-sr CIPster 1802525be27d33e19a9a83c163e331a1d13b1892. This impacts an unknown function of the file source/src/enet_encap/encap.cc of the component TCP Encapsulation Receive Path. The manipulation leads to out-of-bounds read. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is e8e9dba09bf56962807d3504b783ccdb6287f3e4. To fix this issue, it is recommended to deploy a patch.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | 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 | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
CIPsterliftoff-sr |
|
References
- VDB-393612 | liftoff-sr CIPster TCP Encapsulation Receive Path encap.cc out-of-boundsvdb-entry
- VDB-393612 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-76989 | CVE Analysis and Reportthird-party-advisory
- Submit #880112 | liftoff-sr CIPster master before e8e9dba (reproduced on 1802525be27d33e19a9a83c163e331a1d13b1892) Out-of-bounds Readthird-party-advisory
- https://github.com/liftoff-sr/CIPster/issues/46exploitissue-tracking
- https://github.com/liftoff-sr/CIPster/commit/e8e9dba09bf56962807d3504b783ccdb6287f3e4patch
- https://github.com/liftoff-sr/CIPster/product
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.