How severe is CVE-2026-27520?

CVE-2026-27520 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-27520 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27520?

CVE-2026-27520 affects Binardat 10g08-0800gsm Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27520?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-27520 have an EU (EUVD) identifier?

Yes. CVE-2026-27520 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8537.

When was CVE-2026-27520 published?

CVE-2026-27520 was published on 2026-02-24 and last updated on 2026-06-17.

CVE-2026-27520

CVE-2026-27520 is a high-severity vulnerability in Binardat 10g08-0800gsm Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8537
Weakness: CWE-312
Affected product: Binardat 10g08-0800gsm Firmware
Published: 2026-02-24
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-27520?: 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.
How severe is CVE-2026-27520?: CVE-2026-27520 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-27520 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27520?: CVE-2026-27520 affects Binardat 10g08-0800gsm Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27520?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-27520 have an EU (EUVD) identifier?: Yes. CVE-2026-27520 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8537.
When was CVE-2026-27520 published?: CVE-2026-27520 was published on 2026-02-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:binardat:10g08-0800gsm_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Binardat 10g08-0800gsm Firmware

CVE-2026-27507 — Critical (CVSS 9.8): Binardat 10G08-0800GSM network switch firmware version V300SP10260209 and prior contain hard-coded administrative…
CVE-2026-27515 — Critical (CVSS 9.1): Binardat 10G08-0800GSM network switch firmware versions prior to V300SP10260209 generate predictable numeric session…
CVE-2026-23678 — High (CVSS 8.8): Binardat 10G08-0800GSM network switch firmware version V300SP10260209 and prior contain a command injection…
CVE-2026-27521 — High (CVSS 7.5): Binardat 10G08-0800GSM network switch firmware version V300SP10260209 and prior do not implement rate limiting or…
CVE-2026-27519 — High (CVSS 7.5): Binardat 10G08-0800GSM network switch firmware version V300SP10260209 and prior use RC4 with a hard-coded key embedded…
CVE-2026-27516 — High (CVSS 7.5): Binardat 10G08-0800GSM network switch firmware version V300SP10260209 and prior expose user passwords in plaintext…

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