VulnSocial

CVE-2026-2801Disclosure(mozilla / firefox)

LOWCVSS 7.5 · HIGH

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

Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.

mozilla CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-754

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 3 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 4 classified signals
  • Peaked 2d ago at 2 mentions (2026-02-24); latest day: 1
  • 4 total mentions across 3 days

Affected systems

Vendors
mozilla
Products
firefoxthunderbird

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-02-24: 2Mentions · 2026-02-25: 1Mentions · 2026-03-01: 1Technical Details · 2026-02-24: 2Technical Details · 2026-02-25: 1Technical Details · 2026-03-01: 102-2402-2503-01
Signal classification1 categories
Disclosure
4100.0%
Referenced assets4 URLs
Classification over time
DateTotalLabels
2026-02-242
Disclosure2
2026-02-251
Disclosure1
2026-03-011
Disclosure1
Full discourse4 posts
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-2801 (CVSS:7.5, HIGH) is Modified. Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148 and Thu..https://nvd.nist.gov/vuln/detail/CVE-2026-2801 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    The post announces CVE-2026-2801, a high‑severity vulnerability in Firefox’s WebAssembly component due to incorrect boundary checks, with CVSS 7.5, but no PoC, exploit, or patch info is provided.

    0000040
    173 followersView on X
  • ThreatCluster@threatcluster
    Disclosure

    Mozilla Firefox hit by two RCE flaws: CVE-2026-2805 (HTML manipulation) and CVE-2026-2801 (WebAssembly). Both enable remote code execution, disclosed Feb 24, 2026. #Firefox #RCE https://threatcluster.io/cluster/mozilla-firefox-remote-code-execution-vulnerabilities-identi-60c5f6dc

    Post summary

    Mozilla Firefox disclosed two new RCE vulnerabilities (CVE-2026-2805 and CVE-2026-2801) affecting HTML manipulation and WebAssembly, enabling remote code execution.

    0000076
    79 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-2801 Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148. https://www.cve.org/CVERecord?id=CVE-2026-2801 ----- Traducción: CVE-2026-2801 Condiciones de límite incorrectas en el componente JavaScrip… http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-2801, describing a boundary‑condition flaw in Firefox’s WebAssembly component, with no evidence of exploitation or mitigation details.

    0000052
    54 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-2801 Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability affects Firefox < 148. https://www.cve.org/CVERecord?id=CVE-2026-2801

    Post summary

    CVE-2026-2801, a vulnerability involving incorrect boundary conditions in Firefox's JavaScript WebAssembly component, has been disclosed and affects Firefox versions below 148.

    00000262
    56.6K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appmozillafirefox---
Appmozillathunderbird---

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