How severe is CVE-2015-6290?

CVE-2015-6290 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-6290 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6290?

CVE-2015-6290 primarily affects Cisco Web Security Virtual Appliance. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6290?

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

When was CVE-2015-6290 published?

CVE-2015-6290 was published on 2015-09-14 and last updated on 2026-06-17.

CVE-2015-6290

CVE-2015-6290 is a medium-severity vulnerability in Cisco Web Security Virtual Appliance with a CVSS 2.0 base score of 4.3. 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-119.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Cisco Web Security Virtual Appliance
Published: 2015-09-14
Last modified: 2026-06-17

Description

Cisco Web Security Appliance (WSA) 8.0.7 allows remote HTTP servers to cause a denial of service (memory consumption from stale TCP connections) via crafted responses, aka Bug ID CSCuw10426.

Frequently asked questions

What is CVE-2015-6290?: Cisco Web Security Appliance (WSA) 8.0.7 allows remote HTTP servers to cause a denial of service (memory consumption from stale TCP connections) via crafted responses, aka Bug ID CSCuw10426.
How severe is CVE-2015-6290?: CVE-2015-6290 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-6290 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6290?: CVE-2015-6290 primarily affects Cisco Web Security Virtual Appliance. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6290?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6290 published?: CVE-2015-6290 was published on 2015-09-14 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:cisco:web_security_virtual_appliance:8.0.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_virtual_appliance:8.0.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_virtual_appliance:8.0.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:web_security_virtual_appliance:8.0_base:*:*:*:*:*:*:*

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