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Fencer Intel
medium 6.5

CVE-2020-5736 json

Amcrest cameras and NVR are vulnerable to a null pointer dereference over port 37777.

published 6y ago modified 4mo ago also EUVD-2020-26895

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

Summary

Amcrest cameras and NVR are vulnerable to a null pointer dereference over port 37777. An authenticated remote attacker can abuse this issue to crash the device.

Patch / fix

  • amcrest ipm-721_firmware v2.420.ac00.18.r.20200217
  • amcrest ip2m-841_firmware v2.420.ac00.18.r.20200217
  • amcrest ip2m-841-v3_firmware v2.800.0000000.6.r.200314
  • amcrest ip2m-853ew_firmware v2.623.00ac004.0.r.200316
  • amcrest ip2m-858w_firmware v2.623.00ac004.0.r.200316
  • amcrest ip2m-866w_firmware v2.623.00ac004.0.r.200316
  • amcrest ip2m-866ew_firmware v2.623.00ac004.0.r.200316
  • amcrest ip4m-1053ew_firmware v2.623.00ac004.0.r.200316
  • amcrest ip8m-2454ew_firmware v2.622.00ac000.0.r.200320
  • amcrest ip8m-2493eb_firmware v2.622.00ac000.0.r.200320
  • amcrest ip8m-2496eb_firmware v2.622.00ac000.0.r.200320
  • amcrest ip8m-2597e_firmware v2.800.00ac000.0.r.200330
  • amcrest ip8m-mb2546ew_firmware v2.622.00ac000.0.r.200320
  • amcrest ip8m-mt2544ew_firmware v2.622.00ac000.0.r.200320
  • amcrest ip8m-t2499ew_firmware v2.622.00ac000.0.r.200320
  • amcrest ipm-hx1_firmware v2.420.ac00.18.r.20200217

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Exploit prediction

1.59% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 6.8 AV:N/AC:L/Au:S/C:N/I:N/A:C

Affected products

  • n/a Amcrest

Classification

Weakness

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.