How severe is CVE-2017-11502?

CVE-2017-11502 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-2017-11502 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-11502?

CVE-2017-11502 affects Cisco Dpc3928ad Docsis Wireless Router Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-11502?

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-2017-11502 published?

CVE-2017-11502 was published on 2017-07-20 and last updated on 2026-06-17.

CVE-2017-11502

CVE-2017-11502 is a critical-severity vulnerability in Cisco Dpc3928ad Docsis Wireless Router 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-200.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cisco Dpc3928ad Docsis Wireless Router Firmware
Published: 2017-07-20
Last modified: 2026-06-17

Description

Technicolor DPC3928AD DOCSIS devices allow remote attackers to read arbitrary files via a request starting with "GET /../" on TCP port 4321.

Frequently asked questions

What is CVE-2017-11502?: Technicolor DPC3928AD DOCSIS devices allow remote attackers to read arbitrary files via a request starting with "GET /../" on TCP port 4321.
How severe is CVE-2017-11502?: CVE-2017-11502 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-2017-11502 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-11502?: CVE-2017-11502 affects Cisco Dpc3928ad Docsis Wireless Router Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-11502?: 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-2017-11502 published?: CVE-2017-11502 was published on 2017-07-20 and last updated on 2026-06-17.

References

https://blogs.securiteam.com/index.php/archives/2911#more-2911

Affected products (1)

cpe:2.3:o:cisco:dpc3928ad_docsis_wireless_router_firmware:-:*:*:*:*:*:*:*

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