How severe is CVE-2017-6690?

CVE-2017-6690 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2017-6690 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-6690?

CVE-2017-6690 primarily affects Cisco Asr 5000 Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-6690?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-6690 published?

CVE-2017-6690 was published on 2017-06-13 and last updated on 2026-06-17.

CVE-2017-6690

CVE-2017-6690 is a medium-severity vulnerability in Cisco Asr 5000 Software with a CVSS 3.x base score of 4.9. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Asr 5000 Software
Published: 2017-06-13
Last modified: 2026-06-17

Description

A vulnerability in the file check operation of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, remote attacker to overwrite or modify arbitrary files on an affected system. More Information: CSCvd73726. Known Affected Releases: 21.0.v0.65839 21.3.M0.67005. Known Fixed Releases: 21.4.A0.67087 21.4.A0.67079 21.4.A0.67013 21.3.M0.67084 21.3.M0.67077 21.3.M0.66994 21.3.J0.66993 21.1.v0.67082 21.1.V0.67083.

Frequently asked questions

What is CVE-2017-6690?: A vulnerability in the file check operation of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, remote attacker to overwrite or modify arbitrary files on an affected system. More Information: CSCvd73726. Known Affected Releases: 21.0.v0.65839 21.3.M0.67005. Known Fixed Releases: 21.4.A0.67087 21.4.A0.67079 21.4.A0.67013 21.3.M0.67084 21.3.M0.67077 21.3.M0.66994 21.3.J0.66993 21.1.v0.67082 21.1.V0.67083.
How severe is CVE-2017-6690?: CVE-2017-6690 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2017-6690 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-6690?: CVE-2017-6690 primarily affects Cisco Asr 5000 Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-6690?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-6690 published?: CVE-2017-6690 was published on 2017-06-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:cisco:asr_5000_software:21.0.v0.65839:*:*:*:*:*:*:*
cpe:2.3:a:cisco:asr_5000_software:21.3.m0.67005:*:*:*:*:*:*:*

More vulnerabilities in Cisco Asr 5000 Software

CVE-2017-6729 — High (CVSS 7.5): A vulnerability in the Border Gateway Protocol (BGP) processing functionality of the Cisco StarOS operating system for…
CVE-2016-6455 — High (CVSS 7.5): A vulnerability in the Slowpath of StarOS for Cisco ASR 5500 Series routers with Data Processing Card 2 (DPC2) could…
CVE-2016-1436 — High (CVSS 7.5): The General Packet Radio Switching Tunneling Protocol 1 (aka GTPv1) implementation on Cisco ASR 5000 Packet Data…
CVE-2017-6773 — Medium (CVSS 6.7): A vulnerability in the CLI of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating…
CVE-2016-1452 — Medium (CVSS 6.5): Cisco ASR 5000 devices with software 18.3 through 20.0.0 allow remote attackers to make configuration changes over SNMP…
CVE-2017-6775 — Medium (CVSS 5.7): A vulnerability in the CLI of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating…

All CVEs affecting Cisco Asr 5000 Software →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →