Update bundle signature bypass in Guardian/CMC before 26.4.0
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Nozomi Networks | Guardian | unaffected |
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| Nozomi Networks | CMC | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Nozomi Networks | Cmc |
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| Nozomi Networks | Guardian |
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Vendor Solution
Upgrade to v26.4.0 or later.
Vendor Workaround
Use internal firewall features to limit access to the web management interface.
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.227% probability within 30 days)
| Link | Providers |
|---|---|
| https://security.nozominetworks.com/NN-2026:21-01 |
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A signature verification vulnerability was discovered in the update installation functionality due to inconsistent validation of the update bundle contents. An attacker with administrative privileges can remotely supply a crafted update bundle that passes signature verification but runs an unsigned script when the bundle is installed. The script runs with root privileges, allowing the attacker to read or modify sensitive data, change the appliance configuration, or shut down the appliance. | |
| Title | Update bundle signature bypass in Guardian/CMC before 26.4.0 | |
| First Time appeared |
Nozomi Networks
Nozomi Networks cmc Nozomi Networks guardian |
|
| Weaknesses | CWE-347 | |
| CPEs | cpe:2.3:a:nozomi_networks:cmc:*:*:*:*:*:*:*:* cpe:2.3:a:nozomi_networks:guardian:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Nozomi Networks
Nozomi Networks cmc Nozomi Networks guardian |
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| References |
| |
| Metrics |
cvssV3_1
|