How severe is CVE-2015-0689?

CVE-2015-0689 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 none, integrity high, and availability none.

Is CVE-2015-0689 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-0689?

CVE-2015-0689 affects Cisco Cloud Web Security. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-0689?

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-2015-0689 published?

CVE-2015-0689 was published on 2017-09-19 and last updated on 2026-06-17.

CVE-2015-0689

CVE-2015-0689 is a high-severity vulnerability in Cisco Cloud Web Security 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-19.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-19
Affected product: Cisco Cloud Web Security
Published: 2017-09-19
Last modified: 2026-06-17

Description

Cisco Cloud Web Security before 3.0.1.7 allows remote attackers to bypass intended filtering protection mechanisms by leveraging improper handling of HTTP methods, aka Bug ID CSCut69743.

Frequently asked questions

What is CVE-2015-0689?: Cisco Cloud Web Security before 3.0.1.7 allows remote attackers to bypass intended filtering protection mechanisms by leveraging improper handling of HTTP methods, aka Bug ID CSCut69743.
How severe is CVE-2015-0689?: CVE-2015-0689 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 none, integrity high, and availability none.
Is CVE-2015-0689 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-0689?: CVE-2015-0689 affects Cisco Cloud Web Security. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-0689?: 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-2015-0689 published?: CVE-2015-0689 was published on 2017-09-19 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/viewAlert.x?alertId=38221

Affected products (1)

cpe:2.3:a:cisco:cloud_web_security:*:*:*:*:*:*:*:*

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