CVE-2026-6986
Description
A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This issue affects the function mg_aes_gcm_decrypt of the file /src/tls_aes128.c of the component GCM Authentication Tag Handler. Such manipulation leads to improper verification of cryptographic signature. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. Upgrading to version 7.21 is capable of addressing this issue. It is advisable to upgrade the affected component. VulDB has contacted the vendor early and they confirmed quickly, that this issue got fixed already.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
5- github.com/dwBruijn/CVEs/blob/main/Mongoose/AESGCM.mdnvdExploitThird Party Advisory
- vuldb.com/submit/796231nvdThird Party AdvisoryVDB Entry
- vuldb.com/vuln/359529nvdThird Party AdvisoryVDB Entry
- github.com/cesanta/mongoose/releases/tag/7.21nvdRelease Notes
- vuldb.com/vuln/359529/ctinvdPermissions RequiredVDB Entry
News mentions
0No linked articles in our index yet.