6.5
MEDIUM
CVE-2022-43391
Zyxel NR7101 Buffer Overflow Denial-of-Service
Description

A buffer overflow vulnerability in the parameter of the CGI program in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause denial-of-service (DoS) conditions by sending a crafted HTTP request.

INFO

Published Date :

Jan. 11, 2023, 2:15 a.m.

Last Modified :

Nov. 21, 2024, 7:26 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2022-43391 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Zyxel lte7480-m804_firmware
2 Zyxel lte7490-m904_firmware
3 Zyxel nebula_nr7101_firmware
4 Zyxel nr7101_firmware
5 Zyxel nr7102_firmware
6 Zyxel pm7320-b0_firmware
7 Zyxel pmg5317-t20b_firmware
8 Zyxel pmg5617ga_firmware
9 Zyxel pmg5622ga_firmware
10 Zyxel nebula_nr5101_firmware
11 Zyxel nr5101_firmware
12 Zyxel dx3301-t0_firmware
13 Zyxel dx4510-b1_firmware
14 Zyxel dx5401-b0_firmware
15 Zyxel emg3525-t50b_firmware
16 Zyxel emg5523-t50b_firmware
17 Zyxel emg5723-t50k_firmware
18 Zyxel ex3301-t0_firmware
19 Zyxel ex3510-b0_firmware
20 Zyxel ex5401-b0_firmware
21 Zyxel ex5501-b0_firmware
22 Zyxel ex5510-b0_firmware
23 Zyxel ex5512-t0_firmware
24 Zyxel ex5600-t1_firmware
25 Zyxel ex5601-t0_firmware
26 Zyxel ex5601-t1_firmware
27 Zyxel vmg3927-t50k_firmware
28 Zyxel vmg4005-b50a_firmware
29 Zyxel vmg4005-b60a_firmware
30 Zyxel vmg8623-t50b_firmware
31 Zyxel vmg8825-t50k_firmware
32 Zyxel ax7501-b0_firmware
33 Zyxel pm3100-t0_firmware
34 Zyxel pm5100-t0_firmware
35 Zyxel pm7300-t0_firmware
36 Zyxel pmg5617-t20b2_firmware
37 Zyxel wx3100-t0_firmware
38 Zyxel wx3401-b0_firmware
39 Zyxel wx5600-t0_firmware
40 Zyxel lte3301-plus_firmware
41 Zyxel lte5388-m804_firmware
42 Zyxel lte5398-m904_firmware
43 Zyxel lte7240-m403_firmware
44 Zyxel lte7461-m602_firmware
45 Zyxel lte7480-s905_firmware
46 Zyxel lte7485-s905_firmware
47 Zyxel nebula_lte3301-plus_firmware
48 Zyxel nebula_lte7461-m602_firmware
49 Zyxel nebula_lte3301-plus
50 Zyxel wx5600-t0
51 Zyxel wx3401-b0
52 Zyxel wx3100-t0
53 Zyxel pm7300-t0
54 Zyxel pm5100-t0
55 Zyxel pm3100-t0
56 Zyxel ax7501-b0
57 Zyxel vmg8825-t50k
58 Zyxel vmg8623-t50b
59 Zyxel vmg4005-b60a
60 Zyxel vmg4005-b50a
61 Zyxel vmg3927-t50k
62 Zyxel emg5723-t50k
63 Zyxel emg5523-t50b
64 Zyxel emg3525-t50b
65 Zyxel ex5601-t1
66 Zyxel ex5601-t0
67 Zyxel ex5512-t0
68 Zyxel ex5510-b0
69 Zyxel ex5401-b0
70 Zyxel ex3510-b0
71 Zyxel ex3301-t0
72 Zyxel dx5401-b0
73 Zyxel dx3301-t0
74 Zyxel dx4510-b1
75 Zyxel ex5501-b0
76 Zyxel lte3301-plus
77 Zyxel lte5388-m804
78 Zyxel lte5398-m904
79 Zyxel lte7240-m403
80 Zyxel lte7461-m602
81 Zyxel lte7480-m804
82 Zyxel lte7480-s905
83 Zyxel lte7485-s905
84 Zyxel nr5101
85 Zyxel nr7101
86 Zyxel nr7102
87 Zyxel pmg5317-t20b
88 Zyxel pmg5617-t20b2
89 Zyxel pmg5617ga
90 Zyxel pmg5622ga
91 Zyxel lte7490-m904
92 Zyxel nebula_nr7101
93 Zyxel pm7320-b0
94 Zyxel nebula_nr5101
95 Zyxel ex5600-t1
96 Zyxel nebula_lte7461-m602
: Total Affected Vendor : 1 | Products : 96
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2022-43391.

URL Resource
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders Vendor Advisory
https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2022-43391 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-43391 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Dec. 29, 2023

    Action Type Old Value New Value
    Changed Description A buffer overflow vulnerability in the parameter of the CGI program in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause denial-of-service (DoS) conditions by sending a crafted HTTP request. A buffer overflow vulnerability in the parameter of the CGI program in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an authenticated attacker to cause denial-of-service (DoS) conditions by sending a crafted HTTP request.
    Removed CVSS V3.1 Zyxel Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
    Added CVSS V3.1 Zyxel Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Initial Analysis by [email protected]

    Jan. 18, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders No Types Assigned https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-command-injection-and-buffer-overflow-vulnerabilities-of-cpe-fiber-onts-and-wifi-extenders Vendor Advisory
    Added CWE NIST CWE-120
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte3301-plus_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:lte3301-plus:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte5388-m804_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:lte5388-m804:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte5398-m904_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:lte5398-m904:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7240-m403_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:lte7240-m403:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7461-m602_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:lte7461-m602:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7480-m804_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abra.6\)c0 OR cpe:2.3:h:zyxel:lte7480-m804:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7480-s905_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:lte7480-s905:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7485-s905_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:lte7485-s905:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:lte7490-m904_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abqy.5\)c0 OR cpe:2.3:h:zyxel:lte7490-m904:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_lte3301-plus_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.15\(acca.3\)c0 OR cpe:2.3:h:zyxel:nebula_lte3301-plus:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_lte7461-m602_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.15\(acev.3\)c0 OR cpe:2.3:h:zyxel:nebula_lte7461-m602:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_nr5101_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.15\(accg.3\)c0 OR cpe:2.3:h:zyxel:nebula_nr5101:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nebula_nr7101_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.15\(accc.3\)c0 OR cpe:2.3:h:zyxel:nebula_nr7101:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nr5101_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abvc.6\)c0 OR cpe:2.3:h:zyxel:nr5101:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nr7101_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abuv.7\)c0 OR cpe:2.3:h:zyxel:nr7101:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:nr7102_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.00\(abyd.2\)c0 OR cpe:2.3:h:zyxel:nr7102:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx3301-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:dx3301-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx4510-b1_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:dx4510-b1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:dx5401-b0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:dx5401-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg3525-t50b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg3525-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg5523-t50b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg5523-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:emg5723-t50k_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:emg5723-t50k:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3301-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ex3301-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex3510-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17\(abup.7\)c0 OR cpe:2.3:h:zyxel:ex3510-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5401-b0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ex5401-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5501-b0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ex5501-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5510-b0_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.17\(abqx.7\)c0 OR cpe:2.3:h:zyxel:ex5510-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5512-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ex5512-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5600-t1_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ex5600-t1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5601-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ex5601-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ex5601-t1_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ex5601-t1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg3927-t50k_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg3927-t50k:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg4005-b50a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg4005-b50a:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg4005-b60a_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg4005-b60a:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8623-t50b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg8623-t50b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:vmg8825-t50k_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:vmg8825-t50k:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:ax7501-b0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:ax7501-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm3100-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pm3100-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm5100-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pm5100-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm7300-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pm7300-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pm7320-b0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pm7320-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5317-t20b_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pmg5317-t20b:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5617-t20b2_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pmg5617-t20b2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5617ga_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pmg5617ga:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:pmg5622ga_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:pmg5622ga:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx3100-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:wx3100-t0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx3401-b0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:wx3401-b0:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:wx5600-t0_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:wx5600-t0:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2022-43391 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2022-43391 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} -0.01%

score

0.28895

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: