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CVE-2015-6291

UnknownEPSS 1.93%

Last modified

CVE-2015-6291 is a vulnerability of currently unknown severity. Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.. EPSS estimates a 1.93% chance of exploitation in the next 30 days.

Description

Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.

Metrics

EPSS Probability
1.93%

77.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoEmail Security Appliance7.7.0-000
CiscoEmail Security Appliance7.7.1-000
CiscoEmail Security Appliance8.0_base
CiscoEmail Security Appliance8.5.6-052
CiscoEmail Security Appliance8.5.6-073
CiscoEmail Security Appliance8.5.6-074
CiscoEmail Security Appliance8.5.6-106
CiscoEmail Security Appliance8.5.6-113
CiscoEmail Security Appliance8.5.7-042
CiscoEmail Security Appliance8.5_base
CiscoEmail Security Appliance9.0.0
CiscoEmail Security Appliance9.0.0-212
CiscoEmail Security Appliance9.0.0-461
CiscoEmail Security Appliance9.0.5-000
CiscoEmail Security Appliance9.1.0-032
CiscoEmail Security Appliance9.6.0-042

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2015-6291?
Cisco AsyncOS before 8.5.7-043, 9.x before 9.1.1-023, and 9.5.x and 9.6.x before 9.6.0-046 on Email Security Appliance (ESA) devices mishandles malformed fields during body-contains, attachment-contains, every-attachment-contains, attachment-binary-contains, dictionary-match, and attachment-dictionary-match filtering, which allows remote attackers to cause a denial of service (memory consumption) via a crafted attachment in an e-mail message, aka Bug ID CSCuv47151.
How severe is CVE-2015-6291?
Severity scoring for CVE-2015-6291 is pending analysis. The EPSS model estimates a 1.93% probability of exploitation in the next 30 days.
How do I fix CVE-2015-6291?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST