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Fencer Vulns
critical 9.8

CVE-2020-10511 json

HGiga C&Cmail - Broken Access Control

published 2020-04-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-2964

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

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.

Exploit prediction

2.23% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • HGiga C&Cmail

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.