VulnSocial

CVE-2026-2774Disclosure(mozilla / firefox)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch mozilla firefox systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Integer overflow in the Audio/Video 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
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-190

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.

  • firefox
  • thunderbird

Threat summary

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

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 4 signals
  • Disclosure: 3 classified signals
  • Peaked 2d ago at 2 mentions (2026-02-25); latest day: 1
  • 4 total mentions across 3 days

Affected systems

Vendors
mozilla
Products
firefoxthunderbird

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-02-25: 2Mentions · 2026-03-01: 1Mentions · 2026-04-16: 1Patch / Workaround · 2026-04-16: 1Technical Details · 2026-02-25: 2Technical Details · 2026-03-01: 1Technical Details · 2026-04-16: 102-2503-0104-16
Signal classification2 categories
Disclosure
375.0%
Patch
125.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-02-252
Disclosure2
2026-03-011
Disclosure1
2026-04-161
Patch1
Full discourse4 posts
  • Giuseppe Paternicola@giuseppe_1337
    Patch

    🚨 CRITICAL: CVE-2026-2774 (CVSS 9.8) - Integer overflow in Firefox/Thunderbird Audio/Video component. Network exploitable, no user interaction required. Patch NOW to Firefox 148, ESR 115.33/140.8, Thunderbird 148/140.8. #CVE #PatchNow #ThreatIntel https://t.co/VDSyPw17vW

    Post summary

    The tweet announces a critical integer‑overflow vulnerability in Firefox and Thunderbird’s audio/video components, warns that it is network‑exploitable without user interaction, and urges users to update to the patched releases immediately.

    0000057
    25 followersView on X
  • CRAC Learning - Tech@cracbot
    Disclosure

    CVE-2026-2774 (CVSS:9.8, CRITICAL) is Modified. Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox E..https://nvd.nist.gov/vuln/detail/CVE-2026-2774 #cybersecurityawareness #cybersecurity #CVE #infosec #hacker #nvd #mitre

    Post summary

    The post announces CVE-2026-2774, an integer overflow in Firefox’s Audio/Video component, with high severity and affected versions, but provides no PoC, exploit, or patch information.

    0000030
    173 followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-2774 Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. https://www.cve.org/CVERecord?id=CVE-2026-2774 ----- Traducción: CVE-2026-2774 desbordamiento de entero en el compone… http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-2774, an integer overflow affecting specific Firefox versions, without mentioning PoC, exploit code, or patches.

    0000043
    54 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-2774 Integer overflow in the Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, and Firefox ESR < 140.8. https://www.cve.org/CVERecord?id=CVE-2026-2774

    Post summary

    CVE-2026-2774 is an integer overflow vulnerability in Firefox’s Audio/Video component affecting versions below 148 and certain ESR releases.

    00000220
    56.6K followersView on X
CPE platform detail4 entries

4 of 4 entries

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

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