CVE-2022-20738
CVE-2022-20738 is a medium-severity vulnerability in Cisco Umbrella Secure Web Gateway with a CVSS 3.x base score of 5.8. 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-693.
Key facts
- Severity: Medium (CVSS 3.x base score 5.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 1% (62nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-693
- Affected product: Cisco Umbrella Secure Web Gateway
- Published:
- Last modified:
Description
A vulnerability in the Cisco Umbrella Secure Web Gateway service could allow an unauthenticated, remote attacker to bypass the file inspection feature. This vulnerability is due to insufficient restrictions in the file inspection feature. An attacker could exploit this vulnerability by downloading a crafted payload through specific methods. A successful exploit could allow the attacker to bypass file inspection protections and download a malicious payload.
Frequently asked questions
- What is CVE-2022-20738?
- A vulnerability in the Cisco Umbrella Secure Web Gateway service could allow an unauthenticated, remote attacker to bypass the file inspection feature. This vulnerability is due to insufficient restrictions in the file inspection feature. An attacker could exploit this vulnerability by downloading a crafted payload through specific methods. A successful exploit could allow the attacker to bypass file inspection protections and download a malicious payload.
- How severe is CVE-2022-20738?
- CVE-2022-20738 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
- Is CVE-2022-20738 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-20738?
- CVE-2022-20738 affects Cisco Umbrella Secure Web Gateway. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-20738?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2022-20738 published?
- CVE-2022-20738 was published on 2022-02-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:cisco:umbrella_secure_web_gateway:-:*:*:*:*:*:*:*
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