How severe is CVE-2013-6277?

CVE-2013-6277 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-2013-6277 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6277?

CVE-2013-6277 primarily affects Qnap Viocard 300 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6277?

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.

When was CVE-2013-6277 published?

CVE-2013-6277 was published on 2020-02-13 and last updated on 2026-06-17.

CVE-2013-6277

CVE-2013-6277 is a high-severity vulnerability in Qnap Viocard 300 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-798.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Qnap Viocard 300 Firmware
Published: 2020-02-13
Last modified: 2026-06-17

Description

QNAP VioCard 300 has hardcoded RSA private keys.

Frequently asked questions

What is CVE-2013-6277?: QNAP VioCard 300 has hardcoded RSA private keys.
How severe is CVE-2013-6277?: CVE-2013-6277 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-2013-6277 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6277?: CVE-2013-6277 primarily affects Qnap Viocard 300 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6277?: 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.
When was CVE-2013-6277 published?: CVE-2013-6277 was published on 2020-02-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:qnap:viocard_300_firmware:rs_b3722:*:*:*:*:*:*:*
cpe:2.3:o:qnap:viocard_300_firmware:rs_b4631:*:*:*:*:*:*:*

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