Skip to content
Noroxi
CVE-2023-36498· NVD / CVE Program· CNA talos

A post-authentication command injection vulnerability exists in the PPTP client functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1.3

A post-authentication command injection vulnerability exists in the PPTP client functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1.3.0 build 20230322 Rel.70591. A specially crafted HTTP request can lead to arbitrary command injection. An attacker can make an authenticated HTTP request to trigger this vulnerability and gain access to an unrestricted shell.

HighCVSS 7.2 · v3.1—No exploit No fix recorded
Published
Feb 6, 2024
Updated
Jun 17, 2026
EPSS
3.4% · 89th percentile
Follow this CVE

Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.

Report tools

JSON

Action score

29

Monitor

Low priority for now.

CVSS
28 / 40 · 7.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.4%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · talos
7.2
NVD has not scored this yet; the score shown is the CNA’s.

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

Affected systems

VendorProduct
tp-linker7206 firmware
tp-linker7206

Affected versions

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

  • tp-link er7206 firmware1.3.0

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.

  • Tp-Link ER7206 Omada Gigabit VPN Router

    • 1.3.0 build 20230322 Rel.70591affected

Same product

tp-link: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-47618A post authentication command execution vulnerability exists in the web filtering functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1
    29Monitor
  • CVE-2023-47617A post authentication command injection vulnerability exists when configuring the web group member of Tp-Link ER7206 Omada Gigabit VPN Route
    29Monitor
  • CVE-2023-47209A post authentication command injection vulnerability exists in the ipsec policy functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1.
    29Monitor
  • CVE-2023-47167A post authentication command injection vulnerability exists in the GRE policy functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1.3.
    29Monitor
  • CVE-2023-46683A post authentication command injection vulnerability exists when configuring the wireguard VPN functionality of Tp-Link ER7206 Omada Gigab
    29Monitor
  • CVE-2023-43482A command execution vulnerability exists in the guest resource functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1.3.0 build 20230322
    29Monitor

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.

Variant candidates

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

  • CVE-2023-426640 days apartA post authentication command injection vulnerability exists when setting up the PPTP global configuration of Tp-Link ER7206 Omada Gigabit V
    29Monitor
  • CVE-2023-466830 days apartA post authentication command injection vulnerability exists when configuring the wireguard VPN functionality of Tp-Link ER7206 Omada Gigab
    29Monitor
  • CVE-2023-471670 days apartA post authentication command injection vulnerability exists in the GRE policy functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1.3.
    29Monitor
  • CVE-2023-472090 days apartA post authentication command injection vulnerability exists in the ipsec policy functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1.
    29Monitor
  • CVE-2023-476170 days apartA post authentication command injection vulnerability exists when configuring the web group member of Tp-Link ER7206 Omada Gigabit VPN Route
    29Monitor
  • CVE-2023-476180 days apartA post authentication command execution vulnerability exists in the web filtering functionality of Tp-Link ER7206 Omada Gigabit VPN Router 1
    29Monitor

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.
  • Administrator privileges are 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
High
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS vector

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

nvd-secondary

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

The bug in code

The whole CWE-78 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const host = req.body.host;exec("ping -c 1 " + host, onResult);

Fixed

ts
const host = req.body.host;if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);execFile("ping", ["-c", "1", host], onResult);

Attack context

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

ATT&CK techniques

—

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.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records