How severe is CVE-2017-15805?

CVE-2017-15805 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-2017-15805 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-15805?

CVE-2017-15805 primarily affects Cisco Small Business Sa520 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-15805?

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-2017-15805 published?

CVE-2017-15805 was published on 2017-10-23 and last updated on 2026-06-17.

CVE-2017-15805

CVE-2017-15805 is a high-severity vulnerability in Cisco Small Business Sa520 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Cisco Small Business Sa520 Firmware
Published: 2017-10-23
Last modified: 2026-06-17

Description

Cisco Small Business SA520 and SA540 devices with firmware 2.1.71 and 2.2.0.7 allow ../ directory traversal in scgi-bin/platform.cgi via the thispage parameter, for reading arbitrary files.

Frequently asked questions

What is CVE-2017-15805?: Cisco Small Business SA520 and SA540 devices with firmware 2.1.71 and 2.2.0.7 allow ../ directory traversal in scgi-bin/platform.cgi via the thispage parameter, for reading arbitrary files.
How severe is CVE-2017-15805?: CVE-2017-15805 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-2017-15805 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-15805?: CVE-2017-15805 primarily affects Cisco Small Business Sa520 Firmware. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-15805?: 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-2017-15805 published?: CVE-2017-15805 was published on 2017-10-23 and last updated on 2026-06-17.

References

https://www.fwhibbit.es/lfi-en-cisco-small-business-sa500-series-cuando-la-seguridad-de-tu-red-esta-hecha-un-cisco

Affected products (4)

cpe:2.3:o:cisco:small_business_sa520_firmware:2.1.71:*:*:*:*:*:*:*
cpe:2.3:o:cisco:small_business_sa520_firmware:2.2.0.7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:small_business_sa540_firmware:2.1.71:*:*:*:*:*:*:*
cpe:2.3:o:cisco:small_business_sa540_firmware:2.2.0.7:*:*:*:*:*:*:*

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