CVE-2026-78167Public exploitNetwork attack vector

Administrator takeover via path-prefix authentication bypass

Published Aug 24, 2026 · Updated Aug 24, 2026

Authentication bypass in EFM Networks ipTIME T16000M 14.20.2 allows remote attackers to reset the administrator password. The httpcon_check_session_url function enforces authentication only for URLs beginning with /sess-bin/, so /cgi/timepro.cgi skips httpcon_auth. A valid CAPTCHA value is required for the reset request; the new credentials grant access to the administrative interface.

CVSS severityUnavailable
Unscored
EPSS probability1.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in EFM Networks ipTIME T16000M 14.20.2 allows remote attackers to reset the administrator password. The httpcon_check_session_url function enforces authentication only for URLs beginning with /sess-bin/, so /cgi/timepro.cgi skips httpcon_auth. A valid CAPTCHA value is required for the reset request; the new credentials grant access to the administrative interface.

The record

CVE
CVE-2026-78167
Published
Aug 24, 2026
Updated
Aug 24, 2026
Vendor
EFM Networks
Product
ipTIME T16000M
Classifications
CWE-287, T1098
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=14.20.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

EFM Networks · ipTIME T16000Mversion=14.20.2

Published CVSS scores

10.0VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.1VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.1VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

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-287Improper Authentication
T1098Account Manipulation

Public exploit references

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

Technologies

Your stack

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Your stack

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