Cisco AnyConnect Secure Mobility Client for Linux Out-of-Bounds Memory Read Vulnerability

published 2019-05-16 7y ago modified 2026-06-17 4mo ago also EUVD-2019-10410

cvss: 4.8; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits: 0; none known

A vulnerability in the HostScan component of Cisco AnyConnect Secure Mobility Client for Linux could allow an unauthenticated, remote attacker to read sensitive information on an affected system. The vulnerability exists because the affected software performs improper bounds checks. An attacker could exploit this vulnerability by crafting HTTP traffic for the affected component to download and process. A successful exploit could allow the attacker to read sensitive information on the affected system.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last yr. (2024-11-21)

Exploit prediction

1.56% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	4.8	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD	3.0	7.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

Cisco Cisco AnyConnect Secure Mobility Client

Classification

Weakness

CWE-125 Out-of-bounds Read

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-anyconnectclient-oob-read
vendor-advisory
securityfocus.com /bid/108364
vdb-entry, third-party-advisory

Sources

CVE List CVE-2019-1853
NVD CVE-2019-1853

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