What is the CVSS score of CVE-2026-27520?

CVE-2026-27520 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of 10g08 0800gsm Firmware are affected by CVE-2026-27520?

Binardat 10G08-0800GSM network switches in affected firmware versions expose user credentials in browser cookies, creating a credential theft risk for any user accessing the web interface.

How to fix or mitigate CVE-2026-27520?

Within 24 hours: inventory all Binardat 10G08-0800GSM switches in production and identify those running firmware versions prior to V300SP10260209. Within 7 days: implement network segmentation to restrict web interface access to trusted administrative networks only and disable web-based management if not operationally required. Within 30 days: establish vendor contact for patch availability timeline and conduct credential audit for any potentially exposed administrative accounts.

10g08 0800gsm Firmware CVE-2026-27520

HIGH

Cleartext Storage of Sensitive Information (CWE-312)

2026-02-24 disclosure@vulncheck.com

Information Disclosure 10g08 0800gsm Firmware

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Feb 24, 2026 - 16:24 nvd

HIGH 7.5

DescriptionCVE.org

Binardat 10G08-0800GSM network switch firmware versions prior to V300SP10260209 store a user password in a client-side cookie as a Base64-encoded value accessible via the web interface. Because Base64 is reversible and provides no confidentiality, an attacker who can access the cookie value can recover the plaintext password.

AnalysisAI

Binardat 10G08-0800GSM network switch firmware versions before V300SP10260209 expose user credentials by storing passwords as reversible Base64-encoded values in web interface cookies, allowing unauthenticated attackers with cookie access to recover plaintext passwords. This high-severity vulnerability affects confidentiality of administrative credentials with no available patch, creating significant risk for network infrastructure compromise.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Access web interface cookie storage

Exploit

Retrieve Base64-encoded password cookie

Execution

Decode Base64 to plaintext

Impact

Obtain user credentials

Access

Access web interface cookie storage

Exploit

Retrieve Base64-encoded password cookie

Execution

Decode Base64 to plaintext

Impact

Obtain user credentials

Vulnerability AssessmentAI

Exploitation	Binardat 10G08-0800GSM network switch firmware versions prior to V300SP10260209 with web interface enabled and user authentication configured. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.5 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker could exploit this vulnerability to compromise the affected system.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.