Cisco · Catalyst SD-WAN Manger
CVE-2026-20122
Cisco Catalyst SD-WAN Manager Arbitrary File Overwrite Vulnerability
Nedir
A vulnerability in the API of Cisco Catalyst SD-WAN Manager could allow an authenticated, remote attacker to overwrite arbitrary files on the local file system. To exploit this vulnerability, the attacker must have valid read-only credentials with API access on the affected system.
This vulnerability is due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
CISA: Cisco Catalyst SD-WAN Manager contains an incorrect use of privileged APIs vulnerability due to improper file handling on the API interface of an affected system. An attacker could exploit this vulnerability by uploading a malicious file on the local file system. A successful exploit could allow the attacker to overwrite arbitrary files on the affected system and gain vmanage user privileges.
Ne yapmalı
Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
ABD federal kurumları için son tarih: 23 Nisan 2026
Cisco için istismar edilen diğer açıklar
| Eklenme | Açık | Ürün | Önem | Saldırı olasılığı |
|---|---|---|---|---|
| 14 Eki 2026 | Relative Path Traversal | Secure Email Gateway | Kritik 9,8 | 2,2% |
| 30 Eyl 2026 | Hex Encoding | Catalyst SD-WAN Manager | Kritik 9,8 | 39% |
| 16 Eyl 2026 | Incorrect Use of Privileged APIs | Identity Services Engine | Kritik 10,0 | 76% |
| 14 Eyl 2026 | SQL Injection | Secure Email Gateway | Kritik 9,8 | 30% |
| 9 Eyl 2026 | Firewall Management Center Authentication Bypass Using an Alternate Path or Channel | Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management | Kritik 10,0 | 88% |
| 11 Ağu 2026 | Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection | Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) | Yüksek 8,6 | 1,0% |
| 29 Tem 2026 | Secure Firewall Management Center Use of Hard-coded Password | Secure Firewall Management Center (FMC) | Orta 5,3 | 35% |
| 13 Tem 2026 | Cross-Site Request Forgery | IOS | Yüksek 8,1 | 34% |
Kaynaklar: Known Exploited Vulnerabilities (CISA, kamu malı), CVE records (cve.org) ve EPSS (FIRST). Saldırı olasılığı, birinin önümüzdeki 30 günde açığı istismar etmeye çalışacağına dair EPSS tahminidir.