CVE-2026-6986
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Cesanta Mongoose GCM Authentication Tag tls_aes128.c mg_aes_gcm_decrypt signature verification
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Mongoose
- Vendor
- Cesanta
- Product
- Mongoose
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 7.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.5 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.7 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.18 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.20 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 7.21 | unaffected | Unavailable | Unavailable | Unavailable | None listed |