CVE-2020-10231Public exploitNetwork attack vector

Authenticated web interface crash via null dereference

Published Apr 1, 2020 · Updated Aug 4, 2024

Denial of service in TP-Link NC-series camera firmware allows remote authenticated users to crash the web interface via a login request. The /login.fcgi handler's httpLoginRpm method passes a NULL result from httpGetEnv for an omitted HTTP_USER_AGENT value to strstr. Default camera credentials can satisfy the authentication gate; exploitation crashes the ipcamera process and leaves port 80 unavailable.

CVSS severity7.5
High
EPSS probability3.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in TP-Link NC-series camera firmware allows remote authenticated users to crash the web interface via a login request. The /login.fcgi handler's httpLoginRpm method passes a NULL result from httpGetEnv for an omitted HTTP_USER_AGENT value to strstr. Default camera credentials can satisfy the authentication gate; exploitation crashes the ipcamera process and leaves port 80 unavailable.

The record

CVE
CVE-2020-10231
Published
Apr 1, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 1, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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