CVE-2026-3873Disclosure

LOWCVSS 7.2 · HIGH

Signal is active with 4 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Use of Hard-coded Credentials vulnerability in Avantra allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Avantra: before 25.3.0.

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0.0/ 10 priority

Sources & remediation

Other references

https://support.avantra.com/hc/en-us/articles/5352465121695-Security-Notice-Legacy-Built-In-User-Account-rtm

Weakness type (CWE)

CWE-798

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

4 mentions across 1 observed day

What's happening

Technical details provided in 4 signals
Disclosure: 4 classified signals
4 total mentions across 1 day

Deep dive

Activity timeline4 mentions / 1d

Signal classification1 categories

Disclosure

4100.0%

Referenced assets4 URLs

By indicator

Full discourse4 posts

Vulmon Vulnerability Feed@VulmonFeeds209d
Disclosure
CVE-2026-3873 Use of Hard-coded Credentials vulnerability in Avantra allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects Avantra https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-3873
Post summary
A new CVE (2026-3873) is disclosed, noting hard‑coded credentials in Avantra allow unauthorized access through ACL gaps; no PoC, exploit, active misuse, or patch info is given.
0101053
4.0K followersView on X
CyberDudeBivash® | Global Cybersecurity Company@cyberbivash210d
Disclosure
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-3873 - Avantra Hard-coded Credentials Authentication Bypass Intel Report: https://ift.tt/lUvgfRZ
Post summary
An alert references a newly disclosed CVE‑2026‑3873 that allows authentication bypass through hard‑coded credentials, with a link to an intel report for details.
0000033
340 followersView on X
Infoflowcloud@infoflowcloud210d
Disclosure
🚨*CVE* CVE-2026-3873 Use of Hard-coded Credentials vulnerability in Avnatra Avantra allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Avantra: before 25.3.0. https://www.cve.org/CVERecord?id=CVE-2026-3873 ----- Traducción: Vulnerabilidad CVE… http://infoflow.cloud`
Post summary
The post announces CVE-2026-3873, describing a hard‑coded credential issue in Avantra versions before 25.3.0, but provides no PoC, exploit, patch, or evidence of active exploitation.
0000030
57 followersView on X
CVE@CVEnew210d
Disclosure
CVE-2026-3873 Use of Hard-coded Credentials vulnerability in Avnatra Avantra allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Avantra: before 25.3.0. https://www.cve.org/CVERecord?id=CVE-2026-3873
Post summary
The text announces CVE‑2026‑3873, a hard‑coded credentials flaw in Avantra allowing unauthorized access prior to v25.3.0, with no PoC, exploit, or patch information disclosed.
00000242
56.7K followersView on X

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What researchers are saying

CVE-2026-3873

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

A new CVE (2026-3873) is disclosed, noting hard‑coded credentials in Avantra allow unauthorized access through ACL gaps; no PoC, exploit, active misuse, or patch info is given.

CyberDudeBivash® | Global Cybersecurity Company@cyberbivashDisclosure

An alert references a newly disclosed CVE‑2026‑3873 that allows authentication bypass through hard‑coded credentials, with a link to an intel report for details.

Infoflowcloud@infoflowcloudDisclosure

The post announces CVE-2026-3873, describing a hard‑coded credential issue in Avantra versions before 25.3.0, but provides no PoC, exploit, patch, or evidence of active exploitation.

CVE@CVEnewDisclosure

The text announces CVE‑2026‑3873, a hard‑coded credentials flaw in Avantra allowing unauthorized access prior to v25.3.0, with no PoC, exploit, or patch information disclosed.