VulnSocial

CVE-2026-21345Disclosure(adobe / macos)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch adobe macos systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Substance3D - Stager versions 3.1.6 and earlier are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

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1.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

  • macos
  • substance_3d_stager
  • windows

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 3 signals
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • Peaked 1d ago at 2 mentions (2026-02-10); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
adobeapplemicrosoft
Products
macossubstance_3d_stagerwindows

1 version affected across 3 products

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-02-10: 2Mentions · 2026-04-19: 1Patch / Workaround · 2026-04-19: 1Technical Details · 2026-02-10: 2Technical Details · 2026-04-19: 102-1004-19
Signal classification3 categories
Disclosure
133.3%
General
133.3%
Patch
133.3%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-02-102
Disclosure1General1
2026-04-191
Patch1
Full discourse3 posts
  • White Rabbitx 🏴‍☠️@TheRabbitPy
    Patch

    💥 CVE-2026-21345 – Cloudflare Workers SSRF (High, CVSS 8.2): Unvalidated fetch() URLs in Workers allow internal service pivoting; chain with R2 for metadata exfil. Update Workers runtime and validate outbound requests. https://blog.cloudflare.com/workers-ssrf-cve-2026-21345

    Post summary

    Cloudflare disclosed a high‑severity SSRF (CVE‑2026‑21345) in Workers that permits internal service pivoting and metadata exfiltration via R2; a patch is available by updating the Workers runtime and enforcing outbound request validation.

    0000015
    1.0K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-21345 Out-of-Bounds Read Vulnerability in Substance3D Stager Versions 3... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-21345 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4

    Post summary

    The tweet announces CVE-2026-21345, noting an out‑of‑bounds read vulnerability in Substance3D Stager v3, but provides no exploit, PoC, patch, or active exploitation details.

    0000049
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-21345 Substance3D - Stager versions 3.1.6 and earlier are affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the… https://www.cve.org/CVERecord?id=CVE-2026-21345

    Post summary

    Substance3D Stager versions 3.1.6 and earlier suffer an out-of-bounds read vulnerability triggered by a crafted file.

    0000086
    56.5K followersView on X
CPE platform detail3 entries

3 of 3 entries

PartVendorProductVersionTarget SWTarget HW
Appadobesubstance_3d_stager---
OSapplemacos---
OSmicrosoftwindows---

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