CVE-2023-43261Public exploitNetwork attack vector

Credential disclosure via unauthenticated router logs

Published Oct 4, 2023 · Updated Jul 9, 2026

Information disclosure in Milesight UR5X, UR32L, UR32, UR35, and UR41 before 35.3.0.7 allows remote attackers to read router credentials. The web server exposes /lang/log/httpd.log without authentication, and the log records usernames and AES-CBC-encrypted passwords while client-side code supplies a fixed key and IV. Any network-reachable management interface exposes retrievable credentials that can be decrypted and used to access the router; no integrity or availability effect is reported.

CVSS severity7.5
High
EPSS probability59.61%
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

Information disclosure in Milesight UR5X, UR32L, UR32, UR35, and UR41 before 35.3.0.7 allows remote attackers to read router credentials. The web server exposes /lang/log/httpd.log without authentication, and the log records usernames and AES-CBC-encrypted passwords while client-side code supplies a fixed key and IV. Any network-reachable management interface exposes retrievable credentials that can be decrypted and used to access the router; no integrity or availability effect is reported.

The record

CVE
CVE-2023-43261
Published
Oct 4, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-532, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 4, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-532Insertion of Sensitive Information into Log File
T1552.001Credentials In Files

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