Vulnerability Database

346,508

Total vulnerabilities in the database

CVE-2019-1762 — cisco / ios

Exposure of Sensitive Information to an Unauthorized Actor

A vulnerability in the Secure Storage feature of Cisco IOS and IOS XE Software could allow an authenticated, local attacker to access sensitive system information on an affected device. The vulnerability is due to improper memory operations performed at encryption time, when affected software handles configuration updates. An attacker could exploit this vulnerability by retrieving the contents of specific memory locations of an affected device. A successful exploit could result in the disclosure of keying materials that are part of the device configuration, which can be used to recover critical system information.

  • Published: Mar 28, 2019
  • Updated: Nov 9, 2025
  • CVE: CVE-2019-1762
  • Severity: Low
  • Exploit:

CVSS v2:

  • Severity: Low
  • Score: 2.1
  • AV:L/AC:L/Au:N/C:P/I:N/A:N

CWEs:

Software From Fixed in
cisco / ios 15.6(3)m1 15.6(3)m1.x
cisco / ios 15.6(3)m3 15.6(3)m3.x
cisco / ios 15.7(3)m 15.7(3)m.x
cisco / ios 15.6(3)m2a 15.6(3)m2a.x
cisco / ios 15.3(3)ja1n 15.3(3)ja1n.x
cisco / ios_xe 16.6.1 16.6.1.x
cisco / ios 15.6(3)m1b 15.6(3)m1b.x
cisco / ios 15.3(3)jn2 15.3(3)jn2.x
cisco / ios 15.6(3)m2 15.6(3)m2.x
cisco / ios 15.3(3)jn1 15.3(3)jn1.x
cisco / ios 15.2(4)jn1 15.2(4)jn1.x
cisco / ios_xe 16.6.3 16.6.3.x
cisco / ios 15.6(3)m1a 15.6(3)m1a.x
cisco / ios 15.6(3)m3a 15.6(3)m3a.x
cisco / ios 15.7(3)m0a 15.7(3)m0a.x
cisco / ios 15.7(3)m1 15.7(3)m1.x
cisco / ios_xe 16.8.1 16.8.1.x
cisco / ios_xe 16.7.1 16.7.1.x
cisco / ios_xe 16.6.2 16.6.2.x
cisco / ios_xe 16.9.1 16.9.1.x
cisco / ios 15.1(3)svo2 15.1(3)svo2.x
cisco / ios 12.2(6)i1 12.2(6)i1.x
cisco / ios 15.1(3)svp1 15.1(3)svp1.x
cisco / ios 15.6(2)sp3b 15.6(2)sp3b.x
cisco / ios 15.2(3)ea1 15.2(3)ea1.x
cisco / ios 15.2(4a)ea5 15.2(4a)ea5.x
cisco / ios 15.1(2)sg8a 15.1(2)sg8a.x
cisco / ios 15.1(4)m12c 15.1(4)m12c.x
cisco / ios_xe 16.8.1a 16.8.1a.x
cisco / ios_xe 16.8.1s 16.8.1s.x
cisco / ios_xe 16.8.1b 16.8.1b.x
cisco / ios_xe 16.8.2 16.8.2.x
cisco / ios_xe 16.7.2 16.7.2.x
cisco / ios_xe 16.8.1d 16.8.1d.x
cisco / ios_xe 16.7.3 16.7.3.x
cisco / ios_xe 16.7.1a 16.7.1a.x
cisco / ios_xe 16.7.1b 16.7.1b.x
cisco / ios_xe 16.8.1c 16.8.1c.x
cisco / ios_xe 16.8.1e 16.8.1e.x
cisco / ios 15.6(3)m4 15.6(3)m4.x
cisco / ios 15.1(3)svg3d 15.1(3)svg3d.x
cisco / ios 15.1(3)svn2 15.1(3)svn2.x
cisco / ios_xe 16.9.1s 16.9.1s.x
cisco / ios 15.1(3)svi1b 15.1(3)svi1b.x
cisco / ios 15.3(3)jf35 15.3(3)jf35.x
cisco / ios 15.1(3)svo1 15.1(3)svo1.x
cisco / ios_xe 16.9.1c 16.9.1c.x
cisco / ios_xe 16.9.1b 16.9.1b.x
cisco / ios 15.1(3)svm3 15.1(3)svm3.x
cisco / ios 15.3(3)ji2 15.3(3)ji2.x
cisco / ios_xe 16.9.1d 16.9.1d.x
cisco / ios_xe 16.6.4s 16.6.4s.x
cisco / ios_xe 16.6.4 16.6.4.x
cisco / ios_xe 16.7.4 16.7.4.x
cisco / ios_xe 16.9.1a 16.9.1a.x
cisco / ios_xe 16.9.2a 16.9.2a.x
cisco / ios_xe 16.9.2 16.9.2.x
cisco / ios_xe 16.6.4a 16.6.4a.x
cisco / ios 15.6(3.1)m 15.6(3.1)m.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.