How severe is CVE-2016-1315?

CVE-2016-1315 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-2016-1315 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-2016-1315?

CVE-2016-1315 primarily affects Cisco Email Security Appliance Firmeware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1315?

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-2016-1315 published?

CVE-2016-1315 was published on 2016-02-12 and last updated on 2026-06-17.

CVE-2016-1315

CVE-2016-1315 is a high-severity vulnerability in Cisco Email Security Appliance Firmeware 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Cisco Email Security Appliance Firmeware
Published: 2016-02-12
Last modified: 2026-06-17

Description

The proxy engine in Cisco Advanced Malware Protection (AMP), when used with Email Security Appliance (ESA) 9.5.0-201, 9.6.0-051, and 9.7.0-125, allows remote attackers to bypass intended content restrictions via a malformed e-mail message containing an encoded file, aka Bug ID CSCux45338.

Frequently asked questions

What is CVE-2016-1315?: The proxy engine in Cisco Advanced Malware Protection (AMP), when used with Email Security Appliance (ESA) 9.5.0-201, 9.6.0-051, and 9.7.0-125, allows remote attackers to bypass intended content restrictions via a malformed e-mail message containing an encoded file, aka Bug ID CSCux45338.
How severe is CVE-2016-1315?: CVE-2016-1315 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-2016-1315 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-2016-1315?: CVE-2016-1315 primarily affects Cisco Email Security Appliance Firmeware. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1315?: 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-2016-1315 published?: CVE-2016-1315 was published on 2016-02-12 and last updated on 2026-06-17.

References

Affected products (5)

cpe:2.3:o:cisco:email_security_appliance_firmeware:9.1.0-032:*:*:*:*:*:*:*
cpe:2.3:o:cisco:email_security_appliance_firmeware:9.5.0-201:*:*:*:*:*:*:*
cpe:2.3:o:cisco:email_security_appliance_firmeware:9.6.0-051:*:*:*:*:*:*:*
cpe:2.3:o:cisco:email_security_appliance_firmeware:9.7.0-125:*:*:*:*:*:*:*
cpe:2.3:o:cisco:email_security_appliance_firmeware:9.7.0-782:*:*:*:*:*:*:*

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