How severe is CVE-2013-6276?

CVE-2013-6276 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2013-6276 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6276?

CVE-2013-6276 primarily affects Qnap Viocard-30 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6276?

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

When was CVE-2013-6276 published?

CVE-2013-6276 was published on 2021-08-09 and last updated on 2026-06-17.

CVE-2013-6276

CVE-2013-6276 is a critical-severity vulnerability in Qnap Viocard-30 Firmware with a CVSS 3.x base score of 9.8. 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Qnap Viocard-30 Firmware
Published: 2021-08-09
Last modified: 2026-06-17

Description

QNAP F_VioCard 2312 and F_VioGate 2308 have hardcoded entries in authorized_keys files. NOTE: 1. All active models are not affected. The last affected model was EOL since 2010. 2. The legacy authorization mechanism is no longer adopted in all active models

Frequently asked questions

What is CVE-2013-6276?: QNAP F_VioCard 2312 and F_VioGate 2308 have hardcoded entries in authorized_keys files. NOTE: 1. All active models are not affected. The last affected model was EOL since 2010. 2. The legacy authorization mechanism is no longer adopted in all active models
How severe is CVE-2013-6276?: CVE-2013-6276 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2013-6276 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6276?: CVE-2013-6276 primarily affects Qnap Viocard-30 Firmware. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6276?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2013-6276 published?: CVE-2013-6276 was published on 2021-08-09 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:o:qnap:viocard-30_firmware:2312_2.1.0:*:*:*:*:*:*:*
cpe:2.3:o:qnap:viocard-100_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qnap:viocard-300_firmware:rc_b3722:*:*:*:*:*:*:*
cpe:2.3:o:qnap:viocard-300_firmware:rs_b4631:*:*:*:*:*:*:*
cpe:2.3:o:qnap:viogate-340a_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:qnap:viogate-340_firmware:2308_2.1.0:*:*:*:*:*:*:*

Other CWE-798 (Use of Hard-coded Credentials) vulnerabilities

CVE-2026-13768 — Critical (CVSS 10.0): Gardyn devices expose a privileged iothubowner key. Access to this key will allow a malicious user to invoke an IoTHub…
CVE-2026-45631 — Critical (CVSS 10.0): Dokploy is a free, self-hostable Platform as a Service (PaaS). From 0.27.0 to before 0.29.3, a hardcoded…
CVE-2026-22769 — Critical (CVSS 10.0): Dell RecoverPoint for Virtual Machines, versions prior to 6.0.3.1 HF1, contain a hardcoded credential vulnerability.…
CVE-2025-42890 — Critical (CVSS 10.0): SQL Anywhere Monitor (Non-GUI) baked credentials into the code,exposing the resources or functionality to unintended…
CVE-2025-7503 — Critical (CVSS 10.0): An OEM IP camera manufactured by Shenzhen Liandian Communication Technology LTD exposes a Telnet service (port 23) with…
CVE-2025-20309 — Critical (CVSS 10.0): A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…

Browse all CWE-798 (Use of Hard-coded Credentials) vulnerabilities →