How severe is CVE-2019-20049?

CVE-2019-20049 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-20049 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20049?

CVE-2019-20049 affects Al-enterprise Omnivista 4760. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-20049?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2019-20049 published?

CVE-2019-20049 was published on 2019-12-27 and last updated on 2026-06-17.

CVE-2019-20049

CVE-2019-20049 is a critical-severity vulnerability in Al-enterprise Omnivista 4760 with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 13% (96th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Al-enterprise Omnivista 4760
Published: 2019-12-27
Last modified: 2026-06-17

Description

An issue was discovered on Alcatel-Lucent OmniVista 4760 devices. A remote unauthenticated attacker can chain a directory traversal (which helps to bypass authentication) with an insecure file upload to achieve Remote Code Execution as SYSTEM. The directory traversal is in the __construct() whereas the insecure file upload is in SetSkinImages().

Frequently asked questions

What is CVE-2019-20049?: An issue was discovered on Alcatel-Lucent OmniVista 4760 devices. A remote unauthenticated attacker can chain a directory traversal (which helps to bypass authentication) with an insecure file upload to achieve Remote Code Execution as SYSTEM. The directory traversal is in the __construct() whereas the insecure file upload is in SetSkinImages().
How severe is CVE-2019-20049?: CVE-2019-20049 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-20049 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20049?: CVE-2019-20049 affects Al-enterprise Omnivista 4760. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-20049?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2019-20049 published?: CVE-2019-20049 was published on 2019-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:al-enterprise:omnivista_4760:*:*:*:*:*:*:*:*

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