CVE-2020-3401
CVE-2020-3401 is a medium-severity vulnerability in Cisco Sd-wan Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.0
- EPSS exploit prediction: 3% (84th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Cisco Sd-wan Firmware
- Published:
- Last modified:
Description
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct path traversal attacks and obtain read access to sensitive files on an affected system. The vulnerability is due to insufficient validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to the affected system. A successful exploit could allow the attacker to view arbitrary files on the affected system.
Frequently asked questions
- What is CVE-2020-3401?
- A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct path traversal attacks and obtain read access to sensitive files on an affected system. The vulnerability is due to insufficient validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to the affected system. A successful exploit could allow the attacker to view arbitrary files on the affected system.
- How severe is CVE-2020-3401?
- CVE-2020-3401 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-3401 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-3401?
- CVE-2020-3401 affects Cisco Sd-wan Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-3401?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-3401 published?
- CVE-2020-3401 was published on 2020-07-16 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
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