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CVE-2018-0138

Low

No strong exploitation signal.

CVSS base
5.3 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS — probability of exploitation (30 days)
1.2%
65.8th percentile
CISA KEV
Not listed
Weakness / dates
CWE-693
Published 2018-02-08 · modified 2026-08-11

CVSS breakdown

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack VectorNNetwork
Attack ComplexityLLow
Privileges RequiredNNone
User InteractionNNone
ScopeUUnchanged
ConfidentialityNNone
IntegrityLLow
AvailabilityNNone

Timeline

Description

A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass file policies that are configured to block files transmitted to an affected device via the BitTorrent protocol. The vulnerability exists because the affected software does not detect BitTorrent handshake messages correctly. An attacker could exploit this vulnerability by sending a crafted BitTorrent connection request to an affected device. A successful exploit could allow the attacker to bypass file policies that are configured to block files transmitted to the affected device via the BitTorrent protocol. Cisco Bug IDs: CSCve26946.

Affected

cisco

References

Official: NVD · CVE.org