VulnSocial

CVE-2026-2761Disclosure(mozilla / firefox)

LOWCVSS 10.0 · CRITICAL

Signal is active with 1 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

Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

mozilla CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-693

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

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

  • firefox
  • thunderbird

Threat summary

  • 4 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 4 classified signals
  • Peaked 1d ago at 3 mentions (2026-02-28); latest day: 1
  • 4 total mentions across 2 days

Affected systems

Vendors
mozilla
Products
firefoxthunderbird

Deep dive

Activity timeline4 mentions / 2d
01223Mentions · 2026-02-28: 3Mentions · 2026-03-01: 1Technical Details · 2026-02-28: 3Technical Details · 2026-03-01: 102-2803-01
Signal classification1 categories
Disclosure
4100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-02-283
Disclosure3
2026-03-011
Disclosure1
Full discourse4 posts
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-2761 (CVSS:10.0, CRITICAL) is Modified. Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Fir..https://nvd.nist.gov/vuln/detail/CVE-2026-2761 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    The post announces a critical sandbox escape vulnerability (CVE‑2026‑2761) in Firefox’s WebRender component, affecting versions below 148 and ESR below 115.33, with a CVSS score of 10.0.

    0000029
    173 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-2761 Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. https://www.cve.org/CVERecord?id=CVE-2026-2761 ----- Traducción: CVE-2026-2761 Escape de sandbox en el componen… http://infoflow.cloud`

    Post summary

    The text announces CVE-2026-2761, a sandbox escape in Firefox’s WebRender component affecting specific versions, without mentioning PoC, exploit code, or patches.

    0000039
    55 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-2761 Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. https://www.cve.org/CVERecord?id=CVE-2026-2761

    Post summary

    A sandbox escape vulnerability (CVE-2026-2761) in Firefox’s WebRender component is disclosed, affecting specific versions, with no PoC, exploit, or patch details provided.

    00000588
    56.6K followersView on X
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-2761 (CVSS:10.0, CRITICAL) is Modified. Sandbox escape in the Graphics: WebRender component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Fir..https://nvd.nist.gov/vuln/detail/CVE-2026-2761 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    The post announces that CVE-2026-2761, a critical sandbox escape in Firefox’s WebRender component, is modified and affects specific Firefox versions, but provides no PoC, exploit, or patch details.

    0000037
    173 followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillafirefox---
Appmozillathunderbird---
Appmozillathunderbird---

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