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Fencer Intel
high 8.1

CVE-2020-13377 json

The web-services interface of Loadbalancer.org Enterprise VA MAX through 8.3.8 could allow an authenticated, remote, low-privileged attacke…

published 3y ago modified 4mo ago also EUVD-2020-5636

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

The web-services interface of Loadbalancer.org Enterprise VA MAX through 8.3.8 could allow an authenticated, remote, low-privileged attacker to conduct directory traversal attacks and obtain read and write access to sensitive files.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

1.53% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • inf0seq.github.io https://inf0seq.github.io/cve/2020/04/21/Path-Traversal-in-Enterprise-loadbalancer-VA-MAX-v8.3.8-and-earlier.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel 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.