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Fencer Intel
low 3.5

CVE-2021-45916 json

SUN & MOON RISE CO., LTD. Shockwall - Improper Input Validation

published 4y ago modified 4mo ago also EUVD-2021-32631

cvss
3.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

The programming function of Shockwall system has an improper input validation vulnerability. An authenticated attacker within the local area network can send malicious response to the server to disrupt the service partially.

Patch / fix

  • SUN & MOON RISE CO., LTD. Shockwall 7.20.0401

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Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 3.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 3.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 2.0 2.7 AV:A/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • SUN & MOON RISE CO., LTD. Shockwall

Classification

Weakness
  • CWE-20 Improper Input Validation

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.