No exploitation reported

CVE-2022-21796

No exploitation reported by the sources we read.

Published2022-01-28
WeaknessCWE-20 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A memory corruption vulnerability exists in the netserver parse_command_list functionality of reolink RLC-410W v3.0.0.136_20121102. A specially-crafted HTTP request can lead to an out-of-bounds write. An attacker can send an HTTP request to trigger this vulnerability.

Timeline

dates in UTC

2022-01-2820:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-21796?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-21796?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Reolink rlc-410w firmwareversion to verify

Branch	Affected	Fixed in	Source
3.0	= 3.0.0.136_20121102	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-15
OpenCVESSVC decisionnone—
NVDCVSS 3.18.2read 2026-10-23
CNACVSS 3.09.3read 2026-10-23
NVDCVSS 2.06.4read 2026-10-23
CNAweakness (CWE)CWE-20read 2026-10-23
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score1.1 %2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Published: 2022-01-28
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-21796?

Is CVE-2022-21796 actively exploited?

Active exploitation of CVE-2022-21796 has not been confirmed. Its EPSS score was 1.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-21796?

CVE-2022-21796 has a CVSS v3 base score of 8.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H.

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