CVE-2026-57155Disclosure

MEDIUM

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Patch affected systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

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4.0/ 10 priority

Priority

MEDIUM

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Threat summary

Public PoC and exploit tooling are both present
Patch or workaround signal is available
2 mentions across 2 observed days
Momentum state: stable

What's happening

Exploit tool or code specified in 1 signal
PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
Disclosure: 2 classified signals
Peaked 1d ago at 1 mentions (2026-07-01); latest day: 1
2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

Daily CyberSecurity@Daily_CyberSec84d
Disclosure
OPNsense root RCE flaws are public with PoC code. CVE-2026-57155 (9.9) chains an arbitrary file write to root. Patch 26.1.11 or 26.4.1p1 now. #OPNsense #RootRCE #RCE #FirewallSecurity #CyberSecurity #Vulnerability #InfoSec #PoC http://securityonline.info/opnsense-root-rce-cve-2026-57155-poc/
Post summary
The post announces the public disclosure of a critical root RCE in OPNsense with PoC code, provides a high‑severity CVE, and lists the available patches.
010121112.1K
12.9K followersView on X
yousukezan@yousukezan91d
Disclosure
Chasing the OPNsense RCE: The Story Behind My First CVEs (CVE-2026-57155) - HackerAsk https://hackerask.com/posts/opnsense/
Post summary
The title announces the discovery of CVE-2026-57155 for OPNsense, but provides no further details on the vulnerability, PoC, exploitation, or patches.
000011.1K
14.4K followersView on X

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