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Vulnerability record · public intelligence
CVE-2021-1519
MEDIUM

Cisco AnyConnect Secure Mobility Client Profile Modification Vulnerability

Published May 6, 2021 · Updated Oct 23, 2026

Severity · CVSSMEDIUM · 4.7
Known exploitationNot listed
EPSS / likelihood0.21%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Oct 23, 2026

Cisco AnyConnect Secure Mobility Client Profile Modification Vulnerability

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client Software could allow an authenticated, local attacker to overwrite VPN profiles on an affected device. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to modify VPN profile files. To exploit this vulnerability, the attacker must have valid credentials on the affected system.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

CVENVDEPSS
SSVC priority
LOW
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. 20210505 Cisco AnyConnect Secure Mobility Client Profile Modification Vulnerability ↗

Record history

Published May 6, 2021 · Last refreshed Oct 23, 2026