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CVE-2022-23919· NVD / CVE Program· CNA talos

A stack-based buffer overflow vulnerability exists in the confsrv set_mf_rule functionality of TCL LinkHub Mesh Wifi MS1G_00_01.00_14.

A stack-based buffer overflow vulnerability exists in the confsrv set_mf_rule functionality of TCL LinkHub Mesh Wifi MS1G_00_01.00_14. A specially-crafted network packet can lead to stack-based buffer overflow. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability leverages the name field within the protobuf message to cause a buffer overflow.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded
Published
Aug 5, 2022
Updated
Jun 17, 2026
EPSS
1.3% · 69th percentile
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Action score

39

Monitor

Low priority for now.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
9.8
CNA · talos
8.8
1.0 point gap

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
tcllinkhub mesh wifi ac1200

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • tcl linkhub mesh wifi ac1200ms1g_00_01.00_14

Versions reported by the vendor

Affected version ranges reported by the assigning authority (talos). Independent of NVD's CPE analysis and usually ahead of it.

  • TCL LinkHub Mesh Wifi

    • MS1G_00_01.00_14affected

Same product

tcl: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-22140An os command injection vulnerability exists in the confsrv ucloud_add_node functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14.
    40Plan
  • CVE-2022-21178An os command injection vulnerability exists in the confsrv ucloud_add_new_node functionality of TCL LinkHub Mesh Wifi MS1G_00_01.00_14.
    40Plan
  • CVE-2022-27178A denial of service vulnerability exists in the confctl_set_wan_cfg functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14.
    39Monitor
  • CVE-2022-26346A denial of service vulnerability exists in the ucloud_del_node functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14.
    39Monitor
  • CVE-2022-26342A buffer overflow vulnerability exists in the confsrv ucloud_set_node_location functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_01.00_14.
    39Monitor
  • CVE-2022-26009A stack-based buffer overflow vulnerability exists in the confsrv ucloud_set_node_location functionality of TCL LinkHub Mesh Wi-Fi MS1G_00_0
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-121 · Stack-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

All records