HOMEVULNERABILITIESCVE-2020-10511
CRITICAL

CVE-2020-10511

CWE-78Published: April 15, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

HGiga C&Cmail CCMAILQ before olln-base-6.0-418.i386.rpm and CCMAILN before olln-base-5.0-418.i386.rpm contains insecure configurations. Attackers can exploit these flaws to access unauthorized functionality via a crafted URL.

NVD Source

Technical Analysis

CVE-2020-10511 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

hgiga1 product(s)
oaklouds ccm\@il
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
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://gist.github.com/tonykuo76/7d41c414f23ef1e47c97f7b97e1b33b0
ADVISORYhttps://www.chtsecurity.com/news/19400b04-ea92-4eaa-afa7-2449fd9b2e0b
ADVISORYhttps://www.twcert.org.tw/tw/cp-132-3535-e40ec-1.html
ADVISORYhttps://gist.github.com/tonykuo76/7d41c414f23ef1e47c97f7b97e1b33b0
ADVISORYhttps://www.chtsecurity.com/news/19400b04-ea92-4eaa-afa7-2449fd9b2e0b
ADVISORYhttps://www.twcert.org.tw/tw/cp-132-3535-e40ec-1.html

All References (6)

→
https://gist.github.com/tonykuo76/7d41c414f23ef1e47c97f7b97e1b33b0Third Party Advisory
→
https://www.chtsecurity.com/news/19400b04-ea92-4eaa-afa7-2449fd9b2e0bThird Party Advisory
→
https://www.twcert.org.tw/tw/cp-132-3535-e40ec-1.htmlThird Party Advisory
→
https://gist.github.com/tonykuo76/7d41c414f23ef1e47c97f7b97e1b33b0Third Party Advisory
→
https://www.chtsecurity.com/news/19400b04-ea92-4eaa-afa7-2449fd9b2e0bThird Party Advisory
→
https://www.twcert.org.tw/tw/cp-132-3535-e40ec-1.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2020-10511
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedApr 15, 2020

Related CVEs (CWE-78)

CVE-2021-47667
10.0
CVE-2026-10520
KEV10.0
CVE-2025-34073
10.0
CVE-2025-34112
10.0
CVE-2025-3499
10.0
CVE-2012-4177
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-10511 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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