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CVE-2026-2967
3.7 LOW
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): High (H)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): Low (L)
- Exploit Code Maturity (E): Proof-of-Concept (P)
- Remediation Level (RL): Not Defined (X)
- Report Confidence (RC): Reasonable (R)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): High (H)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): Low (L)
by @mweinelt Activity log
- Created suggestion
- @mweinelt ignored package mongoose
- @mweinelt dismissed
Cesanta Mongoose TCP Sequence Number net_builtin.c getpeer verification of source
A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/net_builtin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is reported as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
References
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VDB-347334 | Cesanta Mongoose TCP Sequence Number net_builtin.c getpeer verification of source technical-descriptionvdb-entry
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Affected products
Mongoose
- ==7.4
- ==7.18
- ==7.20
- ==7.13
- ==7.19
- ==7.16
- ==7.11
- ==7.0
- ==7.10
- ==7.6
- ==7.15
- ==7.7
- ==7.12
- ==7.8
- ==7.5
- ==7.17
- ==7.3
- ==7.2
- ==7.14
- ==7.1
- ==7.9