admesh up to 0.98.5 src/normals.c stl_check_normal_vector heap-based overflow
Summary
A vulnerability was found in admesh up to 0.98.5. It has been declared as critical. Impacted is the function stl_check_normal_vector of the file src/normals.c. Executing a manipulation can lead to heap-based overflow.
This vulnerability is registered as CVE-2026-2653. The attack needs to be launched locally. Furthermore, an exploit is available.
It looks like this product is not really maintained anymore.
Details
A vulnerability has been found in admesh up to 0.98.5 and classified as critical. This vulnerability affects the function stl_check_normal_vector of the file src/normals.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.
The advisory is available at github.com. This vulnerability was named CVE-2026-2653. The exploitation appears to be easy. Local access is required to approach this attack. Technical details and also a public exploit are known.
It is possible to download the exploit at github.com. It is declared as proof-of-concept. It looks like this product is not really maintained anymore. The vulnerability scanner Nessus provides a plugin with the ID 299486 (Linux Distros Unpatched Vulnerability : CVE-2026-2653), which helps to determine the existence of the flaw in a target environment.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at Tenable (299486). If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Name
Version
Website
- Product: https://github.com/admesh/admesh/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 6.1VulDB Meta Temp Score: 6.0
VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔒
CNA Base Score: 5.3
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Heap-based overflowCWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 299486
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-2653
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
02/18/2026 Advisory disclosed02/18/2026 VulDB entry created
02/21/2026 VulDB entry last update
Sources
Product: github.comAdvisory: 65
Status: Confirmed
Confirmation: 🔒
CVE: CVE-2026-2653 (🔒)
GCVE (CVE): GCVE-0-2026-2653
GCVE (VulDB): GCVE-100-346450
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/18/2026 07:35Updated: 02/21/2026 17:40
Changes: 02/18/2026 07:35 (57), 02/18/2026 13:19 (30), 02/20/2026 00:09 (2), 02/21/2026 17:40 (12)
Complete: 🔍
Submitter: LionTree
Cache ID: 216::103
Submit
Accepted
- Submit #752596: Debian admesh <=0.98.5 Heap-based Buffer Overflow (by LionTree)
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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