How severe is CVE-2015-6285?

CVE-2015-6285 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2015-6285 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6285?

CVE-2015-6285 primarily affects Cisco Email Security Appliance. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6285?

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

When was CVE-2015-6285 published?

CVE-2015-6285 was published on 2015-09-14 and last updated on 2026-06-17.

CVE-2015-6285

CVE-2015-6285 is a medium-severity vulnerability in Cisco Email Security Appliance with a CVSS 2.0 base score of 6.4. 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-134.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-134
Affected product: Cisco Email Security Appliance
Published: 2015-09-14
Last modified: 2026-06-17

Description

Format string vulnerability in Cisco Email Security Appliance (ESA) 7.6.0 and 8.0.0 allows remote attackers to cause a denial of service (memory overwrite or service outage) via format string specifiers in an HTTP request, aka Bug ID CSCug21497.

Frequently asked questions

What is CVE-2015-6285?: Format string vulnerability in Cisco Email Security Appliance (ESA) 7.6.0 and 8.0.0 allows remote attackers to cause a denial of service (memory overwrite or service outage) via format string specifiers in an HTTP request, aka Bug ID CSCug21497.
How severe is CVE-2015-6285?: CVE-2015-6285 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2015-6285 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6285?: CVE-2015-6285 primarily affects Cisco Email Security Appliance. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6285?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6285 published?: CVE-2015-6285 was published on 2015-09-14 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:h:cisco:email_security_appliance:7.6.0:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance:8.0.0:*:*:*:*:*:*:*

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