How severe is CVE-2019-20047?

CVE-2019-20047 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-20047 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-2019-20047?

CVE-2019-20047 primarily affects Al-enterprise Omnivista 4760. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-20047?

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

When was CVE-2019-20047 published?

CVE-2019-20047 was published on 2019-12-27 and last updated on 2026-06-17.

CVE-2019-20047

CVE-2019-20047 is a high-severity vulnerability in Al-enterprise Omnivista 4760 with a CVSS 3.x base score of 7.5. 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-522.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
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, and 8770 devices before 4.1.2. An incorrect web server configuration allows a remote unauthenticated attacker to retrieve the content of its own session files. Every session file contains the administrative LDAP credentials encoded in a reversible format. Sessions are stored in /sessions/sess_<sessionid>.

Frequently asked questions

What is CVE-2019-20047?: An issue was discovered on Alcatel-Lucent OmniVista 4760 devices, and 8770 devices before 4.1.2. An incorrect web server configuration allows a remote unauthenticated attacker to retrieve the content of its own session files. Every session file contains the administrative LDAP credentials encoded in a reversible format. Sessions are stored in /sessions/sess_<sessionid>.
How severe is CVE-2019-20047?: CVE-2019-20047 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-20047 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-2019-20047?: CVE-2019-20047 primarily affects Al-enterprise Omnivista 4760. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-20047?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-20047 published?: CVE-2019-20047 was published on 2019-12-27 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:al-enterprise:omnivista_4760:*:*:*:*:*:*:*:*
cpe:2.3:a:al-enterprise:omnivista_8770:*:*:*:*:*:*:*:*

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