How severe is CVE-2020-5735?

CVE-2020-5735 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-5735 being actively exploited?

Yes. CVE-2020-5735 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-5735?

CVE-2020-5735 primarily affects Amcrest 1080-lite 8ch Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-5735?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-5735 have an EU (EUVD) identifier?

Yes. CVE-2020-5735 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-26894. It is also flagged as exploited in the EUVD (since 2021-11-03).

When was CVE-2020-5735 published?

CVE-2020-5735 was published on 2020-04-08 and last updated on 2026-06-17.

CVE-2020-5735

CVE-2020-5735 is a high-severity vulnerability in Amcrest 1080-lite 8ch Firmware with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2021-11-03). The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 8.0
EPSS exploit prediction: 36% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2021-11-03)
EU (EUVD) id: EUVD-2020-26894
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2021-11-03)
Weakness: CWE-787
Affected product: Amcrest 1080-lite 8ch Firmware
Published: 2020-04-08
Last modified: 2026-06-17

Description

Amcrest cameras and NVR are vulnerable to a stack-based buffer overflow over port 37777. An authenticated remote attacker can abuse this issue to crash the device and possibly execute arbitrary code.

Frequently asked questions

What is CVE-2020-5735?: Amcrest cameras and NVR are vulnerable to a stack-based buffer overflow over port 37777. An authenticated remote attacker can abuse this issue to crash the device and possibly execute arbitrary code.
How severe is CVE-2020-5735?: CVE-2020-5735 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-5735 being actively exploited?: Yes. CVE-2020-5735 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2021-11-03, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-5735?: CVE-2020-5735 primarily affects Amcrest 1080-lite 8ch Firmware. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-5735?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-5735 have an EU (EUVD) identifier?: Yes. CVE-2020-5735 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-26894. It is also flagged as exploited in the EUVD (since 2021-11-03).
When was CVE-2020-5735 published?: CVE-2020-5735 was published on 2020-04-08 and last updated on 2026-06-17.

References

Affected products (18)

cpe:2.3:o:amcrest:1080-lite_8ch_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:amdv10814-h5_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ipm-721_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip2m-841_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip2m-841-v3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip2m-853ew_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip2m-858w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip2m-866w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip2m-866ew_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip4m-1053ew_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip8m-2454ew_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip8m-2493eb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip8m-2496eb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip8m-2597e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip8m-mb2546ew_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip8m-mt2544ew_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ip8m-t2499ew_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amcrest:ipm-hx1_firmware:*:*:*:*:*:*:*:*

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