HOMEVULNERABILITIESCVE-2019-20049
CRITICAL

CVE-2019-20049

NVD-CWE-OtherPublished: December 27, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official 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().

NVD Source

Technical Analysis

CVE-2019-20049 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

al-enterprise1 product(s)
omnivista 4760
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://git.lsd.cat/g/omnivista-rce
ADVISORYhttps://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.html
ADVISORYhttps://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdf
ADVISORYhttps://www.exploit-db.com/exploits/47761
ADVISORYhttps://git.lsd.cat/g/omnivista-rce
ADVISORYhttps://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.html
ADVISORYhttps://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdf
ADVISORYhttps://www.exploit-db.com/exploits/47761

All References (8)

→
https://git.lsd.cat/g/omnivista-rceExploit · Third Party Advisory
→
https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.htmlExploit · Third Party Advisory · VDB Entry
→
https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdfVendor Advisory
→
https://www.exploit-db.com/exploits/47761Exploit · Third Party Advisory · VDB Entry
→
https://git.lsd.cat/g/omnivista-rceExploit · Third Party Advisory
→
https://packetstormsecurity.com/files/155595/Alcatel-Lucent-Omnivista-8770-Remote-Code-Execution.htmlExploit · Third Party Advisory · VDB Entry
→
https://www.al-enterprise.com/en/-/media/assets/internet/documents/sa-c0065-ov8770-rce-vulnerability-en.pdfVendor Advisory
→
https://www.exploit-db.com/exploits/47761Exploit · Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2019-20049
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessNVD-CWE-Other
CISA KEVNo
Affected1 vendor(s)
PublishedDec 27, 2019

Related CVEs (NVD-CWE-Other)

CVE-2006-2807
10.0
CVE-2004-0348
10.0
CVE-2007-3629
10.0
CVE-2007-3824
10.0
CVE-2006-1000
10.0
CVE-2003-0560
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-20049 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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