Cisco Meraki and Campus Gateway Input Validation Vulnerabilities
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Cisco's internal security review led to a hardening release fixing multiple internally found input validation flaws, tracked as CVE-2026-76468 under CWE-20. The CVSS 3.1 base score is 8.2 (HIGH): network attack, low complexity, no privileges or user interaction, high integrity impact and low availability impact. Affected products include Cisco Campus Gateway Software and Meraki MR, MV and MX firmware. CISA's SSVC rates exploitation as none, and the CVE is not in CISA KEV.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76468 are related to improper input validation that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Cisco Campus Gateway Software | CG 33.1.3 | — | No fix listed | CNA |
| Cisco | Cisco Meraki MR Wireless Access Points Software | MR 33.1.2; MR 30.6; MR 32.1.7; MR 32.2.3; MR 32.2.4; MR 33.1.1 | — | No fix listed | CNA |
| Cisco | Cisco Meraki MV Firmware | 4.20; 5.0; 5.1; 5.2; 5.3; 5.4; 5.4.1; 5.5; 5.5.1; 5.6; 5.6.1; 6.0; 6.0.1; 5.6.2; 6.0.2; 6.1; 6.1.1; 6.1.2; 6.2; 6.2.1; 6.2.2; 6.3; 6.3.2; 2.0; 2.1; 2.2; 3.0; 3.1; 3.2; 3.3; 3.4; 3.5; 3.6; 3.7; 3.8; 3.9; 3.10; 3.11; 3.12; 3.13; 3.14; 3.15; 3.16; 3.17; 3.18; 3.19; 3.20; 3.21; 3.22; 3.23; 3.24; 3.25; 3.26; 3.27; 3.28; 3.29; 3.30; 3.31; 3.32; 3.33; 3.34; 3.35; 3.36; 4.0; 4.1; 4.2; 4.3; 4.4; 4.5; 4.6; 4.7; 4.8; 4.9; 4.10; 4.11; 4.12; 4.13; 4.14; 4.15; 4.16; 4.17; 4.18; 4.18.1; 4.19; MV 7.3; MV 7.3.1; MV 7.3.2; MV 7.2.1; MV 7.2.2 | — | No fix listed | CNA |
| Cisco | Cisco Meraki MX Firmware | 16.2; 16.3; 16.4; 16.5; 16.6; 17.3; 17.6; 17.7; 17.8; 17.9; 17.10; 18.1; 18.2; 19.1; MX 18.211.2; MX 26.2.1; MX 19.2.8; MX 26.2.2; MX 26.1.4; MX 26.1.5; MX 26.1.6 | — | No fix listed | CNA |
- Cisco Campus Gateway Software VendorCisco Affected CG 33.1.3 Fixed in — No fix listed CNA
- Cisco Meraki MR Wireless Access Points Software VendorCisco Affected MR 33.1.2; MR 30.6; MR 32.1.7; MR 32.2.3; MR 32.2.4; MR 33.1.1 Fixed in — No fix listed CNA
- Cisco Meraki MV Firmware VendorCisco Affected 4.20; 5.0; 5.1; 5.2; 5.3; 5.4; 5.4.1; 5.5; 5.5.1; 5.6; 5.6.1; 6.0; 6.0.1; 5.6.2; 6.0.2; 6.1; 6.1.1; 6.1.2; 6.2; 6.2.1; 6.2.2; 6.3; 6.3.2; 2.0; 2.1; 2.2; 3.0; 3.1; 3.2; 3.3; 3.4; 3.5; 3.6; 3.7; 3.8; 3.9; 3.10; 3.11; 3.12; 3.13; 3.14; 3.15; 3.16; 3.17; 3.18; 3.19; 3.20; 3.21; 3.22; 3.23; 3.24; 3.25; 3.26; 3.27; 3.28; 3.29; 3.30; 3.31; 3.32; 3.33; 3.34; 3.35; 3.36; 4.0; 4.1; 4.2; 4.3; 4.4; 4.5; 4.6; 4.7; 4.8; 4.9; 4.10; 4.11; 4.12; 4.13; 4.14; 4.15; 4.16; 4.17; 4.18; 4.18.1; 4.19; MV 7.3; MV 7.3.1; MV 7.3.2; MV 7.2.1; MV 7.2.2 Fixed in — No fix listed CNA
- Cisco Meraki MX Firmware VendorCisco Affected 16.2; 16.3; 16.4; 16.5; 16.6; 17.3; 17.6; 17.7; 17.8; 17.9; 17.10; 18.1; 18.2; 19.1; MX 18.211.2; MX 26.2.1; MX 19.2.8; MX 26.2.2; MX 26.1.4; MX 26.1.5; MX 26.1.6 Fixed in — No fix listed CNA
Remediation
No fixed release is listed for the affected products, so this data cannot confirm an available update.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-07 Threatist record created from CVE-2026-76468
- 2026-10-07 CISA SSVC decision points changed
- 2026-10-07 Priority changed: MEDIUM → LOW
- 2026-10-07 Alias added: GHSA-w26m-hvrg-572c
- 2026-10-09 Priority changed: LOW → MEDIUM
References
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Sources
- CVE-2026-76468 · CVE Program
- CVE-2026-76468 · NVD
- FIRST EPSS
- GHSA-w26m-hvrg-572c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences