CVE-2022-45957Public exploitNetwork attack vector

Router crash via oversized ping-test IP parameter

Published Dec 12, 2022 · Updated Apr 22, 2025

Stack buffer overflow in ZTE ZXHN-H108NS firmware H108NSV1.0.7u_ZRD_GR2_A68 allows remote attackers to crash the router. The /cgi-bin/tools_test.asp ping-test handler processes an oversized IP parameter without enforcing the destination stack buffer's bounds. The public proof of concept supplies Basic credentials and a session cookie, although CISA rates the flaw as needing no privileges; only a router service crash is demonstrated.

CVSS severity7.5
High
EPSS probability10.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Stack buffer overflow in ZTE ZXHN-H108NS firmware H108NSV1.0.7u_ZRD_GR2_A68 allows remote attackers to crash the router. The /cgi-bin/tools_test.asp ping-test handler processes an oversized IP parameter without enforcing the destination stack buffer's bounds. The public proof of concept supplies Basic credentials and a session cookie, although CISA rates the flaw as needing no privileges; only a router service crash is demonstrated.

The record

CVE
CVE-2022-45957
Published
Dec 12, 2022
Updated
Apr 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1498
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1498Network Denial of Service

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo