VulnSocial

CVE-2026-11944Disclosure(apple / linux_kernel)

LOWCVSS 6.5 · MEDIUM

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

openSIS Classic 9.3 contains an authenticated path traversal vulnerability in the legacy messaging sent-mail attachment download functionality that allows an authenticated attacker to read arbitrary files on the server via crafted path traversal sequences.

apple CVEsBack to dashboard
2.5/ 10 priority

Sources & remediation

Exploit / PoC references
Other references
Weakness type (CWE)
CWE-22

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • linux_kernel
  • macos
  • opensis
  • windows

Threat summary

  • Public PoC is present in monitored signal
  • 1 mentions across 1 observed day

What's happening

  • PoC mentioned or linked in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
applelinuxmicrosoftos4ed
Products
linux_kernelmacosopensiswindows

2 versions affected across 4 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-18: 1PoC Mentioned / Linked · 2026-08-18: 108-18
Signal classification1 categories
Disclosure
1100.0%
Referenced assets2 URLs
By indicator
Full discourse1 post
  • Fluid Attacks@fluidattacks
    Disclosure

    A zero-day vulnerability in openSIS Classic was discovered by an external pentester, then reviewed and documented by Fluid Attacks: ID CVE-2026-11944. You can find the full details here: 🔗https://fluidattacks.com/advisories/toto. We have disclosed 263 #CVE to this date:🔗https://fluidattacks.com/advisories. https://t.co/BL6bsQAUBG

    Post summary

    The post announces a newly discovered zero‑day in openSIS Classic (CVE‑2026‑11944) and links to Fluid Attacks' advisory for details, but provides no PoC, exploit code, patch information, or evidence of active exploitation.

    00000130
    888 followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
OSapplemacos---
OSlinuxlinux_kernel---
OSmicrosoftwindows---
Appos4edopensis9.3--

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