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CVE-2019-15971

MEDIUM · CVSS 4.3EPSS 0.5%EU EUVD

A vulnerability in the MP3 detection engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device. The vulnerability is due to improper validation of certain MP3 file types. An attacker could exploit this vulnerability by sending a crafted MP3 file through the targeted device. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.

Key facts

CVSS score
4.3 (v3.1)
Severity
MEDIUM
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-20
EPSS score
0.5% (38th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2019-6865)
Published
November 26, 2019
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2019-6865 in the EU Vulnerability Database. Last updated in EUVD on November 19, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / email security appliance firmware

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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