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TI-2021-01317 Aliases CVE-2021-1593GHSA-hrcm-7659-jp84

Cisco Packet Tracer for Windows DLL Injection Vulnerability

Priority LOW 34CWE-427Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-427.

Summary

A vulnerability in Cisco Packet Tracer for Windows could allow an authenticated, local attacker to perform a DLL injection attack on an affected device. To exploit this vulnerability, the attacker must have valid credentials on the Windows system. This vulnerability is due to incorrect handling of directory paths at run time. An attacker could exploit this vulnerability by inserting a configuration file in a specific path on the system, which can cause a malicious DLL file to be loaded when the application starts. A successful exploit could allow an attacker with normal user privileges to execute arbitrary code on the affected system with the privileges of another user’s account.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00318 24th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Packet Tracerall versions—No fix listedCNA
  • Cisco Packet Tracer VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:cisco:packet_tracer:7.2.0:*:*:*:*:*:*:*7.2.0VulnerableCisco
cpe:2.3:a:cisco:packet_tracer:7.2.1:*:*:*:*:*:*:*7.2.1VulnerableCisco
cpe:2.3:a:cisco:packet_tracer:7.2.2:*:*:*:*:*:*:*7.2.2VulnerableCisco
cpe:2.3:a:cisco:packet_tracer:7.3.0:*:*:*:*:*:*:*7.3.0VulnerableCisco
cpe:2.3:a:cisco:packet_tracer:7.3.1:*:*:*:*:*:*:*7.3.1VulnerableCisco
cpe:2.3:a:cisco:packet_tracer:8.0:*:*:*:*:*:*:*8.0VulnerableCisco
  • cpe:2.3:a:cisco:packet_tracer:7.2.0:*:*:*:*:*:*:* Versions 7.2.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:packet_tracer:7.2.1:*:*:*:*:*:*:* Versions 7.2.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:packet_tracer:7.2.2:*:*:*:*:*:*:* Versions 7.2.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:packet_tracer:7.3.0:*:*:*:*:*:*:* Versions 7.3.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:packet_tracer:7.3.1:*:*:*:*:*:*:* Versions 7.3.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:packet_tracer:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-1593
  2. 2026-10-03 Alias added: GHSA-hrcm-7659-jp84

References

  • TI-2010-02996 Untrusted search path vulnerability in Cisco Packet Tracer 5.2 allows local users, and… CVSS 2.0HIGH 9.3
  • TI-2017-09089 Uncontrolled search path in Cisco Network Academy Packet Tracer CVSS 3.0MEDIUM 6.7

Sources